# Crew Chief

> Crew Chief is a vehicle management platform with AI-powered OBD2 diagnostics, VIN decoding, and vehicle management tools.

## Tools

- [AI OBD2 Diagnostic Tool](https://crewchief.cc/diagnostic): Enter your vehicle info and trouble codes to get a personalized AI diagnostic report with causes, costs, and repair steps.
- [VIN Decoder](https://crewchief.cc/#demo): Decode any 17-digit Vehicle Identification Number to see year, make, model, engine, and more.
- [Trusted Shops Finder](https://crewchief.cc/shops): Find vetted auto repair shops near you.

## Wiki — OBD2 Trouble Codes

Comprehensive reference for 543 OBD2 diagnostic trouble codes. Each page includes symptoms, likely causes with probability, DIY vs professional repair costs, difficulty ratings, common fixes, and related codes.

- [OBD2 Codes Index](https://crewchief.cc/wiki/obd2-codes): Browse all codes by category (Powertrain, Body, Chassis, Network).
- [B0001: Driver Airbag Deployment Control Circuit Short To Battery](https://crewchief.cc/wiki/obd2-codes/B0001): Critical — Do Not Drive. DIY $150–$800, Professional $400–$2500.
- [B0002: Driver Airbag Deployment Control Circuit Open/Short To Ground](https://crewchief.cc/wiki/obd2-codes/B0002): Critical — Do Not Drive. DIY $50–$800, Professional $200–$1500.
- [B0003: Driver Frontal Stage 3 Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0003): Moderate — Address Soon. DIY $50–$250, Professional $300–$900.
- [B0004: Driver Knee Bolster Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0004): Moderate — Address Soon. DIY $50–$200, Professional $250–$800.
- [B0005: Collapsible Steering Column Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0005): Moderate — Address Soon. DIY $75–$300, Professional $300–$1000.
- [B0010: Passenger Frontal Stage 1 Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0010): Moderate — Address Soon. DIY $50–$250, Professional $300–$1000.
- [B0015: Left Front Seatbelt Pretensioner Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0015): Moderate — Address Soon. DIY $50–$200, Professional $200–$700.
- [B0020: Left Side Airbag Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0020): Moderate — Address Soon. DIY $75–$300, Professional $300–$900.
- [B0025: Right Curtain Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0025): Moderate — Address Soon. DIY $100–$400, Professional $400–$1200.
- [B0028: Right Side Airbag Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0028): Moderate — Address Soon. DIY $75–$300, Professional $300–$900.
- [B0030: Second Row Left Side Airbag Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0030): Moderate — Address Soon. DIY $75–$350, Professional $300–$1000.
- [B0033: Second Row Left Frontal Stage 3 Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0033): Moderate — Address Soon. DIY $75–$350, Professional $350–$1000.
- [B0051: Deployment Commanded — No Faults Present](https://crewchief.cc/wiki/obd2-codes/B0051): Critical — Do Not Drive. DIY $500–$1500, Professional $1500–$5000.
- [B0052: Deployment Commanded — Crash Data Stored](https://crewchief.cc/wiki/obd2-codes/B0052): Critical — Do Not Drive. DIY $500–$1500, Professional $1500–$5000.
- [B0053: Deployment Commanded with Deployment Loop DTCs Present](https://crewchief.cc/wiki/obd2-codes/B0053): Critical — Do Not Drive. DIY $500–$1500, Professional $1500–$5000.
- [B0060: Driver Seatbelt Tension Sensor](https://crewchief.cc/wiki/obd2-codes/B0060): Moderate — Address Soon. DIY $30–$100, Professional $150–$400.
- [B0071: First Row Center Seatbelt Pretensioner Deployment Control](https://crewchief.cc/wiki/obd2-codes/B0071): Moderate — Address Soon. DIY $50–$200, Professional $200–$600.
- [B1000: Electronic Control Unit (ECU) Internal Malfunction](https://crewchief.cc/wiki/obd2-codes/B1000): Moderate — Address Soon. DIY $10–$100, Professional $200–$1500.
- [B1001: SDM (Airbag Module) Option Configuration Error](https://crewchief.cc/wiki/obd2-codes/B1001): Moderate — Address Soon. DIY $0–$50, Professional $100–$600.
- [B1004: Keep Alive Memory (KAM) Error / ECU Internal Fault](https://crewchief.cc/wiki/obd2-codes/B1004): Low — Monitor. DIY $0–$120, Professional $80–$500.
- [B1015: Passenger Airbag Deploy Loop Resistance High / VIN Data Error](https://crewchief.cc/wiki/obd2-codes/B1015): Moderate — Address Soon. DIY $0–$50, Professional $150–$600.
- [B1047: Ambient Air Temperature Sensor Circuit Low](https://crewchief.cc/wiki/obd2-codes/B1047): Low — Monitor. DIY $15–$60, Professional $80–$250.
- [B1049: Driver Airbag Module Circuit Open](https://crewchief.cc/wiki/obd2-codes/B1049): Moderate — Address Soon. DIY $50–$200, Professional $200–$700.
- [B1200: Climate Control Push Button Circuit Open](https://crewchief.cc/wiki/obd2-codes/B1200): Low — Monitor. DIY $5–$150, Professional $100–$450.
- [B1213: Passenger Seatbelt Pretensioner Deployment Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/B1213): Moderate — Address Soon. DIY $50–$200, Professional $200–$600.
- [B1231: AC Evaporator Temperature Sensor Circuit Open / Acceleration Threshold Exceeded](https://crewchief.cc/wiki/obd2-codes/B1231): Low — Monitor. DIY $15–$80, Professional $150–$500.
- [B1317: Battery Voltage High](https://crewchief.cc/wiki/obd2-codes/B1317): Moderate — Address Soon. DIY $20–$250, Professional $150–$600.
- [B1318: Battery Voltage Low](https://crewchief.cc/wiki/obd2-codes/B1318): Moderate — Address Soon. DIY $20–$250, Professional $150–$800.
- [B1319: Battery Voltage High](https://crewchief.cc/wiki/obd2-codes/B1319): Moderate — Address Soon. DIY $25–$400, Professional $150–$900.
- [B1342: ECU (Electronic Control Unit) Is Defective](https://crewchief.cc/wiki/obd2-codes/B1342): Moderate — Address Soon. DIY $20–$100, Professional $200–$1200.
- [B1352: Ignition Key-In Circuit Failure](https://crewchief.cc/wiki/obd2-codes/B1352): Low — Monitor. DIY $10–$80, Professional $100–$400.
- [B1381: Oil Change Reset Button Circuit Open](https://crewchief.cc/wiki/obd2-codes/B1381): Low — Monitor. DIY $5–$50, Professional $80–$250.
- [B2799: Engine Immobilizer System Malfunction](https://crewchief.cc/wiki/obd2-codes/B2799): High — Immediate Attention. DIY $10–$50, Professional $150–$600.
- [B2960: Security System Sensor Data Incorrect But Valid](https://crewchief.cc/wiki/obd2-codes/B2960): Moderate — Address Soon. DIY $20–$150, Professional $150–$600.
- [C0020: ABS Pump Motor Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0020): Moderate — Address Soon. DIY $50–$300, Professional $300–$1200.
- [C0021: Brake Booster Performance Malfunction](https://crewchief.cc/wiki/obd2-codes/C0021): Moderate — Address Soon. DIY $30–$250, Professional $350–$800.
- [C0022: Brake Booster Solenoid Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0022): Moderate — Address Soon. DIY $40–$200, Professional $250–$700.
- [C0023: Stop Lamp Switch Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0023): Moderate — Address Soon. DIY $10–$50, Professional $80–$250.
- [C0024: Front Left ABS Wheel Speed Sensor Signal Malfunction](https://crewchief.cc/wiki/obd2-codes/C0024): Low — Monitor. DIY $20–$80, Professional $150–$350.
- [C0025: Left Front Wheel Speed Sensor Circuit Open or Short to Battery](https://crewchief.cc/wiki/obd2-codes/C0025): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [C0031: Left Front Wheel Speed Sensor Performance](https://crewchief.cc/wiki/obd2-codes/C0031): Low — Monitor. DIY $20–$80, Professional $100–$350.
- [C0032: Left Front Wheel Speed Sensor Supply Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0032): Low — Monitor. DIY $20–$100, Professional $100–$350.
- [C0033: Right Front Tone Wheel (Reluctor Ring) Fault](https://crewchief.cc/wiki/obd2-codes/C0033): Low — Monitor. DIY $30–$200, Professional $150–$500.
- [C0034: Right Front Wheel Speed Sensor Performance](https://crewchief.cc/wiki/obd2-codes/C0034): Low — Monitor. DIY $20–$80, Professional $100–$350.
- [C0035: Left Front Wheel Speed Sensor Circuit](https://crewchief.cc/wiki/obd2-codes/C0035): Moderate — Address Soon. DIY $25–$150, Professional $120–$400.
- [C0040: Right Front Wheel Speed Sensor Circuit](https://crewchief.cc/wiki/obd2-codes/C0040): Moderate — Address Soon. DIY $25–$150, Professional $120–$450.
- [C0041: Brake Pedal Switch "B" Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0041): Moderate — Address Soon. DIY $10–$50, Professional $80–$250.
- [C0045: Left Rear Wheel Speed Sensor Circuit](https://crewchief.cc/wiki/obd2-codes/C0045): Moderate — Address Soon. DIY $25–$150, Professional $150–$450.
- [C0046: Brake Pressure Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0046): Moderate — Address Soon. DIY $30–$150, Professional $200–$600.
- [C0050: Right Rear Wheel Speed Sensor Circuit](https://crewchief.cc/wiki/obd2-codes/C0050): Moderate — Address Soon. DIY $25–$120, Professional $150–$400.
- [C0051: Steering Wheel Position Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0051): Low — Monitor. DIY $50–$200, Professional $200–$500.
- [C0060: Left Front ABS Solenoid Valve Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0060): Moderate — Address Soon. DIY $50–$200, Professional $300–$1000.
- [C0061: Lateral Acceleration Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0061): Low — Monitor. DIY $50–$250, Professional $200–$600.
- [C0065: Left Front ABS Solenoid #2 Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0065): Moderate — Address Soon. DIY $30–$80, Professional $200–$600.
- [C0070: Right Front ABS Solenoid #1 Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0070): Moderate — Address Soon. DIY $30–$80, Professional $200–$600.
- [C0085: Left Rear ABS Solenoid #2 Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0085): Moderate — Address Soon. DIY $30–$80, Professional $200–$600.
- [C0090: Right Rear ABS Solenoid #1 Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0090): Moderate — Address Soon. DIY $30–$80, Professional $200–$600.
- [C0110: Pump Motor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0110): Moderate — Address Soon. DIY $50–$200, Professional $300–$1200.
- [C0131: ABS/TCS Pressure Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0131): Moderate — Address Soon. DIY $50–$150, Professional $400–$1500.
- [C0161: ABS/TCS Brake Switch Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0161): Moderate — Address Soon. DIY $10–$40, Professional $80–$300.
- [C0236: Rear Wheel Speed Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/C0236): Moderate — Address Soon. DIY $20–$80, Professional $100–$350.
- [C0242: PCM Indicated Traction Control Malfunction](https://crewchief.cc/wiki/obd2-codes/C0242): Moderate — Address Soon. DIY $20–$100, Professional $100–$600.
- [C0265: EBCM Motor Relay Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/C0265): Moderate — Address Soon. DIY $30–$150, Professional $250–$900.
- [C0550: Electronic Control Unit (ECU) Performance](https://crewchief.cc/wiki/obd2-codes/C0550): Moderate — Address Soon. DIY $20–$100, Professional $300–$1000.
- [C0561: System Disabled Information Stored](https://crewchief.cc/wiki/obd2-codes/C0561): Moderate — Address Soon. DIY $20–$100, Professional $100–$800.
- [C1095: ABS Hydraulic Pump Motor Circuit Failure](https://crewchief.cc/wiki/obd2-codes/C1095): Moderate — Address Soon. DIY $40–$150, Professional $250–$900.
- [C1201: Engine Control System Malfunction](https://crewchief.cc/wiki/obd2-codes/C1201): Moderate — Address Soon. DIY $0–$250, Professional $100–$1500.
- [C1241: Low Battery Positive Voltage at ABS Control Module](https://crewchief.cc/wiki/obd2-codes/C1241): Moderate — Address Soon. DIY $15–$200, Professional $100–$500.
- [C1256: Accumulator Low Pressure](https://crewchief.cc/wiki/obd2-codes/C1256): High — Immediate Attention. DIY $200–$600, Professional $800–$3000.
- [P0008: Engine Position System Performance (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0008): Limit Driving. DIY $20–$600, Professional $150–$2500.
- [P0014: Exhaust Camshaft Position Timing Over-Advanced (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0014): Limit Driving. DIY $25–$120, Professional $150–$600.
- [P0087: Fuel Rail/System Pressure Too Low](https://crewchief.cc/wiki/obd2-codes/P0087): Limit Driving. DIY $20–$350, Professional $150–$900.
- [P0100: Mass or Volume Air Flow Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0100): Moderate — Address Soon. DIY $10–$50, Professional $150–$400.
- [P0101: Mass or Volume Air Flow Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0101): Moderate — Address Soon. DIY $10–$60, Professional $150–$450.
- [P0102: Mass or Volume Air Flow Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0102): Moderate — Address Soon. DIY $10–$50, Professional $150–$400.
- [P0103: Mass or Volume Air Flow Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0103): Moderate — Address Soon. DIY $10–$60, Professional $150–$450.
- [P0104: Mass or Volume Air Flow Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0104): Moderate — Address Soon. DIY $5–$50, Professional $100–$400.
- [P0105: Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0105): Moderate — Address Soon. DIY $15–$60, Professional $100–$350.
- [P0106: Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0106): Moderate — Address Soon. DIY $10–$75, Professional $100–$400.
- [P0107: Manifold Absolute Pressure/Barometric Pressure Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0107): Moderate — Address Soon. DIY $10–$60, Professional $100–$350.
- [P0108: Manifold Absolute Pressure/Barometric Pressure Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0108): Moderate — Address Soon. DIY $10–$60, Professional $100–$350.
- [P0109: Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0109): Moderate — Address Soon. DIY $5–$60, Professional $100–$400.
- [P0110: Intake Air Temperature Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0110): Low — Monitor. DIY $10–$40, Professional $75–$200.
- [P0111: Intake Air Temperature Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0111): Low — Monitor. DIY $10–$40, Professional $75–$200.
- [P0112: Intake Air Temperature Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0112): Low — Monitor. DIY $10–$40, Professional $75–$200.
- [P0113: Intake Air Temperature Sensor 1 Circuit High](https://crewchief.cc/wiki/obd2-codes/P0113): Moderate — Address Soon. DIY $25–$120, Professional $100–$350.
- [P0114: Intake Air Temperature Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0114): Low — Monitor. DIY $5–$40, Professional $75–$200.
- [P0115: Engine Coolant Temperature Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0115): Moderate — Address Soon. DIY $10–$50, Professional $75–$250.
- [P0116: Engine Coolant Temperature Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0116): Moderate — Address Soon. DIY $10–$50, Professional $150–$400.
- [P0117: Engine Coolant Temperature Sensor 1 Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0117): Moderate — Address Soon. DIY $10–$40, Professional $100–$300.
- [P0118: Engine Coolant Temperature Sensor 1 Circuit High](https://crewchief.cc/wiki/obd2-codes/P0118): Moderate — Address Soon. DIY $15–$60, Professional $100–$350.
- [P0119: Engine Coolant Temperature Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0119): Moderate — Address Soon. DIY $10–$50, Professional $100–$350.
- [P0120: Throttle/Pedal Position Sensor/Switch A Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0120): Moderate — Address Soon. DIY $20–$100, Professional $150–$400.
- [P0121: Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0121): Moderate — Address Soon. DIY $15–$100, Professional $150–$400.
- [P0122: Throttle/Pedal Position Sensor/Switch A Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0122): Moderate — Address Soon. DIY $35–$150, Professional $120–$450.
- [P0123: Throttle/Pedal Position Sensor/Switch A Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0123): Moderate — Address Soon. DIY $35–$450, Professional $150–$650.
- [P0124: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0124): Moderate — Address Soon. DIY $20–$100, Professional $150–$450.
- [P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control](https://crewchief.cc/wiki/obd2-codes/P0125): Low — Monitor. DIY $10–$50, Professional $100–$350.
- [P0126: Insufficient Coolant Temperature for Stable Operation](https://crewchief.cc/wiki/obd2-codes/P0126): Low — Monitor. DIY $10–$50, Professional $100–$350.
- [P0127: Intake Air Temperature Too High](https://crewchief.cc/wiki/obd2-codes/P0127): Moderate — Address Soon. DIY $10–$80, Professional $100–$300.
- [P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)](https://crewchief.cc/wiki/obd2-codes/P0128): Moderate — Address Soon. DIY $15–$150, Professional $150–$450.
- [P0129: Barometric Pressure Too Low](https://crewchief.cc/wiki/obd2-codes/P0129): Low — Monitor. DIY $15–$80, Professional $100–$350.
- [P0130: O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0130): Moderate — Address Soon. DIY $25–$100, Professional $150–$400.
- [P0131: O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0131): Moderate — Address Soon. DIY $20–$100, Professional $150–$450.
- [P0132: O2 Sensor Circuit High Voltage (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0132): Moderate — Address Soon. DIY $50–$250, Professional $150–$600.
- [P0133: O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0133): Moderate — Address Soon. DIY $40–$150, Professional $150–$450.
- [P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0134): Moderate — Address Soon. DIY $50–$150, Professional $150–$400.
- [P0135: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0135): Moderate — Address Soon. DIY $40–$120, Professional $150–$400.
- [P0136: O2 Sensor Circuit Malfunction (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0136): Low — Monitor. DIY $25–$100, Professional $200–$500.
- [P0137: O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0137): Low — Monitor. DIY $25–$100, Professional $200–$520.
- [P0138: O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0138): Moderate — Address Soon. DIY $25–$120, Professional $200–$550.
- [P0139: O2 Sensor Circuit Slow Response (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0139): Low — Monitor. DIY $30–$150, Professional $150–$400.
- [P0140: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0140): Low — Monitor. DIY $30–$150, Professional $150–$400.
- [P0141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0141): Moderate — Address Soon. DIY $40–$150, Professional $150–$400.
- [P0142: O2 Sensor Circuit Malfunction (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0142): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0143: O2 Sensor Circuit Low Voltage (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0143): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0144: O2 Sensor Circuit High Voltage (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0144): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0145: O2 Sensor Circuit Slow Response (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0145): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0146: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0146): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0147: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0147): Low — Monitor. DIY $40–$175, Professional $175–$450.
- [P0148: Fuel Delivery Error](https://crewchief.cc/wiki/obd2-codes/P0148): Moderate — Address Soon. DIY $20–$250, Professional $200–$800.
- [P0150: O2 Sensor Circuit Malfunction (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0150): Moderate — Address Soon. DIY $30–$200, Professional $150–$500.
- [P0151: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0151): Moderate — Address Soon. DIY $30–$200, Professional $150–$500.
- [P0152: O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0152): Moderate — Address Soon. DIY $30–$200, Professional $150–$500.
- [P0153: O2 Sensor Circuit Slow Response (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0153): Moderate — Address Soon. DIY $30–$200, Professional $150–$500.
- [P0154: O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0154): Moderate — Address Soon. DIY $30–$200, Professional $150–$500.
- [P0155: O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P0155): Low — Monitor. DIY $30–$200, Professional $150–$450.
- [P0156: O2 Sensor Circuit Malfunction (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0156): Low — Monitor. DIY $30–$100, Professional $150–$350.
- [P0157: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0157): Low — Monitor. DIY $25–$100, Professional $140–$350.
- [P0158: O2 Sensor Circuit High Voltage (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0158): Low — Monitor. DIY $25–$100, Professional $150–$400.
- [P0159: O2 Sensor Circuit Slow Response (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0159): Low — Monitor. DIY $30–$100, Professional $150–$350.
- [P0160: O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0160): Moderate — Address Soon. DIY $30–$100, Professional $150–$400.
- [P0161: O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2)](https://crewchief.cc/wiki/obd2-codes/P0161): Low — Monitor. DIY $25–$100, Professional $130–$350.
- [P0162: O2 Sensor Circuit Malfunction (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0162): Low — Monitor. DIY $35–$120, Professional $170–$400.
- [P0163: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0163): Low — Monitor. DIY $35–$120, Professional $170–$400.
- [P0164: O2 Sensor Circuit High Voltage (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0164): Low — Monitor. DIY $35–$120, Professional $170–$400.
- [P0165: O2 Sensor Circuit Slow Response (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0165): Low — Monitor. DIY $35–$120, Professional $170–$400.
- [P0166: O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0166): Moderate — Address Soon. DIY $35–$120, Professional $170–$450.
- [P0167: O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 3)](https://crewchief.cc/wiki/obd2-codes/P0167): Low — Monitor. DIY $35–$120, Professional $160–$400.
- [P0168: Fuel Temperature Too High](https://crewchief.cc/wiki/obd2-codes/P0168): Moderate — Address Soon. DIY $25–$150, Professional $150–$500.
- [P0169: Incorrect Fuel Composition](https://crewchief.cc/wiki/obd2-codes/P0169): Moderate — Address Soon. DIY $20–$200, Professional $150–$600.
- [P0170: Fuel Trim Malfunction (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0170): Moderate — Address Soon. DIY $10–$150, Professional $100–$500.
- [P0171: System Too Lean (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0171): Moderate — Address Soon. DIY $15–$400, Professional $100–$1200.
- [P0172: System Too Rich (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0172): Moderate — Address Soon. DIY $15–$350, Professional $100–$800.
- [P0174: System Too Lean (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0174): Moderate — Address Soon. DIY $15–$400, Professional $150–$1200.
- [P0175: System Too Rich (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0175): Moderate — Address Soon. DIY $15–$400, Professional $100–$900.
- [P0191: Fuel Rail Pressure Sensor Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0191): Limit Driving. DIY $25–$150, Professional $100–$400.
- [P0200: Injector Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0200): Moderate — Address Soon. DIY $50–$250, Professional $200–$700.
- [P0201: Injector Circuit Malfunction - Cylinder 1](https://crewchief.cc/wiki/obd2-codes/P0201): Moderate — Address Soon. DIY $40–$200, Professional $200–$600.
- [P0202: Injector Circuit Malfunction - Cylinder 2](https://crewchief.cc/wiki/obd2-codes/P0202): Moderate — Address Soon. DIY $40–$200, Professional $200–$600.
- [P0203: Injector Circuit Malfunction - Cylinder 3](https://crewchief.cc/wiki/obd2-codes/P0203): Moderate — Address Soon. DIY $40–$200, Professional $200–$600.
- [P0204: Injector Circuit Malfunction - Cylinder 4](https://crewchief.cc/wiki/obd2-codes/P0204): Moderate — Address Soon. DIY $40–$200, Professional $200–$600.
- [P0205: Injector Circuit Malfunction - Cylinder 5](https://crewchief.cc/wiki/obd2-codes/P0205): Moderate — Address Soon. DIY $50–$250, Professional $250–$700.
- [P0206: Injector Circuit Malfunction - Cylinder 6](https://crewchief.cc/wiki/obd2-codes/P0206): Moderate — Address Soon. DIY $50–$250, Professional $250–$700.
- [P0207: Injector Circuit Malfunction - Cylinder 7](https://crewchief.cc/wiki/obd2-codes/P0207): Moderate — Address Soon. DIY $50–$250, Professional $300–$800.
- [P0208: Injector Circuit Malfunction - Cylinder 8](https://crewchief.cc/wiki/obd2-codes/P0208): Moderate — Address Soon. DIY $50–$250, Professional $300–$800.
- [P0217: Engine Over Temperature](https://crewchief.cc/wiki/obd2-codes/P0217): Critical — Stop Driving Immediately. DIY $15–$350, Professional $150–$1800.
- [P0218: Transmission Over Temperature Condition](https://crewchief.cc/wiki/obd2-codes/P0218): High — Immediate Attention. DIY $20–$150, Professional $150–$3500.
- [P0219: Engine Overspeed Condition](https://crewchief.cc/wiki/obd2-codes/P0219): Moderate — Address Soon. DIY $0–$50, Professional $100–$500.
- [P0220: Throttle/Pedal Position Sensor/Switch B Circuit](https://crewchief.cc/wiki/obd2-codes/P0220): Moderate — Address Soon. DIY $25–$150, Professional $150–$500.
- [P0221: Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0221): Moderate — Address Soon. DIY $10–$150, Professional $100–$500.
- [P0222: Throttle/Pedal Position Sensor/Switch B Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0222): Moderate — Address Soon. DIY $25–$200, Professional $150–$550.
- [P0223: Throttle/Pedal Position Sensor/Switch B Circuit High](https://crewchief.cc/wiki/obd2-codes/P0223): High — Immediate Attention. DIY $25–$200, Professional $150–$550.
- [P0230: Fuel Pump Primary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0230): Moderate — Address Soon. DIY $10–$150, Professional $150–$800.
- [P0231: Fuel Pump Secondary Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0231): Limit Driving. DIY $20–$400, Professional $100–$650.
- [P0234: Turbocharger/Supercharger "A" Overboost Condition](https://crewchief.cc/wiki/obd2-codes/P0234): Moderate — Address Soon. DIY $20–$250, Professional $200–$1200.
- [P0243: Turbocharger/Supercharger Wastegate Solenoid "A" Malfunction](https://crewchief.cc/wiki/obd2-codes/P0243): Moderate — Address Soon. DIY $30–$200, Professional $200–$700.
- [P0244: Turbocharger/Supercharger Wastegate Solenoid "A" Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0244): Moderate — Address Soon. DIY $30–$250, Professional $200–$800.
- [P0245: Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0245): Moderate — Address Soon. DIY $25–$200, Professional $150–$650.
- [P0251: Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)](https://crewchief.cc/wiki/obd2-codes/P0251): Moderate — Address Soon. DIY $50–$350, Professional $300–$1500.
- [P0261: Cylinder 1 Injector Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0261): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0262: Cylinder 1 Injector Circuit High](https://crewchief.cc/wiki/obd2-codes/P0262): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0263: Cylinder 1 Contribution/Balance](https://crewchief.cc/wiki/obd2-codes/P0263): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P0264: Cylinder 2 Injector Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0264): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0265: Cylinder 2 Injector Circuit High](https://crewchief.cc/wiki/obd2-codes/P0265): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0266: Cylinder 2 Contribution/Balance](https://crewchief.cc/wiki/obd2-codes/P0266): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P0267: Cylinder 3 Injector Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0267): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0268: Cylinder 3 Injector Circuit High](https://crewchief.cc/wiki/obd2-codes/P0268): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0269: Cylinder 3 Contribution/Balance](https://crewchief.cc/wiki/obd2-codes/P0269): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P0299: Turbocharger/Supercharger Underboost](https://crewchief.cc/wiki/obd2-codes/P0299): Limit Driving. DIY $20–$350, Professional $150–$2200.
- [P0300: Random/Multiple Cylinder Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0300): Moderate — Address Soon. DIY $15–$400, Professional $100–$1500.
- [P0301: Cylinder 1 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0301): Moderate — Address Soon. DIY $15–$250, Professional $100–$1200.
- [P0302: Cylinder 2 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0302): Moderate — Address Soon. DIY $15–$250, Professional $100–$2500.
- [P0303: Cylinder 3 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0303): Moderate — Address Soon. DIY $15–$250, Professional $150–$1200.
- [P0304: Cylinder 4 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0304): Moderate — Address Soon. DIY $15–$250, Professional $100–$1500.
- [P0305: Cylinder 5 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0305): Moderate — Address Soon. DIY $15–$250, Professional $100–$800.
- [P0306: Cylinder 6 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0306): Moderate — Address Soon. DIY $15–$250, Professional $100–$1200.
- [P0307: Cylinder 7 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0307): Moderate — Address Soon. DIY $15–$250, Professional $100–$1200.
- [P0308: Cylinder 8 Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P0308): Moderate — Address Soon. DIY $15–$250, Professional $100–$2500.
- [P0325: Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0325): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P0326: Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0326): Low — Monitor. DIY $15–$80, Professional $150–$400.
- [P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0327): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0328): Moderate — Address Soon. DIY $20–$100, Professional $150–$500.
- [P0330: Knock Sensor 2 Circuit Malfunction (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0330): Low — Monitor. DIY $25–$100, Professional $150–$450.
- [P0332: Knock Sensor 2 Circuit Low Input (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0332): Low — Monitor. DIY $25–$100, Professional $150–$450.
- [P0335: Crankshaft Position Sensor A Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0335): High — Immediate Attention. DIY $25–$150, Professional $120–$400.
- [P0336: Crankshaft Position Sensor A Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0336): Moderate — Address Soon. DIY $25–$80, Professional $150–$350.
- [P0340: Camshaft Position Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0340): Moderate — Address Soon. DIY $25–$150, Professional $120–$450.
- [P0341: Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0341): Moderate — Address Soon. DIY $20–$80, Professional $100–$400.
- [P0342: Camshaft Position Sensor A Circuit Low Input (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0342): Moderate — Address Soon. DIY $15–$80, Professional $100–$350.
- [P0343: Camshaft Position Sensor A Circuit High Input (Bank 1 or Single Sensor)](https://crewchief.cc/wiki/obd2-codes/P0343): Moderate — Address Soon. DIY $15–$80, Professional $100–$350.
- [P0345: Camshaft Position Sensor A Circuit Malfunction (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0345): Moderate — Address Soon. DIY $20–$100, Professional $120–$450.
- [P0346: Camshaft Position Sensor A Circuit Range/Performance (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0346): Moderate — Address Soon. DIY $20–$100, Professional $120–$500.
- [P0351: Ignition Coil A Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0351): Moderate — Address Soon. DIY $25–$80, Professional $100–$300.
- [P0352: Ignition Coil B Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0352): Moderate — Address Soon. DIY $25–$80, Professional $100–$300.
- [P0353: Ignition Coil C Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0353): Moderate — Address Soon. DIY $25–$80, Professional $100–$300.
- [P0354: Ignition Coil D Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0354): Moderate — Address Soon. DIY $25–$80, Professional $100–$300.
- [P0355: Ignition Coil E Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0355): Moderate — Address Soon. DIY $25–$90, Professional $100–$350.
- [P0356: Ignition Coil F Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0356): Moderate — Address Soon. DIY $25–$90, Professional $100–$350.
- [P0357: Ignition Coil G Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0357): Moderate — Address Soon. DIY $25–$90, Professional $120–$400.
- [P0358: Ignition Coil H Primary/Secondary Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0358): Moderate — Address Soon. DIY $25–$90, Professional $120–$400.
- [P0400: Exhaust Gas Recirculation (EGR) Flow Malfunction](https://crewchief.cc/wiki/obd2-codes/P0400): Moderate — Address Soon. DIY $15–$120, Professional $250–$600.
- [P0401: Exhaust Gas Recirculation Flow Insufficient Detected](https://crewchief.cc/wiki/obd2-codes/P0401): Moderate — Address Soon. DIY $15–$350, Professional $150–$650.
- [P0402: Exhaust Gas Recirculation (EGR) Flow Excessive Detected](https://crewchief.cc/wiki/obd2-codes/P0402): Moderate — Address Soon. DIY $10–$100, Professional $200–$550.
- [P0403: Exhaust Gas Recirculation (EGR) Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0403): Moderate — Address Soon. DIY $20–$150, Professional $200–$600.
- [P0404: Exhaust Gas Recirculation (EGR) Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0404): Moderate — Address Soon. DIY $10–$120, Professional $200–$550.
- [P0405: Exhaust Gas Recirculation (EGR) Sensor A Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0405): Moderate — Address Soon. DIY $15–$130, Professional $200–$500.
- [P0406: EGR Sensor A Circuit High](https://crewchief.cc/wiki/obd2-codes/P0406): Limit Driving. DIY $25–$120, Professional $100–$350.
- [P0410: Secondary Air Injection System Malfunction](https://crewchief.cc/wiki/obd2-codes/P0410): Low — Monitor. DIY $30–$250, Professional $350–$900.
- [P0411: Secondary Air Injection System Incorrect Flow Detected](https://crewchief.cc/wiki/obd2-codes/P0411): Low — Monitor. DIY $20–$200, Professional $300–$800.
- [P0412: Secondary Air Injection System Switching Valve A Circuit](https://crewchief.cc/wiki/obd2-codes/P0412): Limit Driving. DIY $30–$150, Professional $150–$500.
- [P0420: Catalyst System Efficiency Below Threshold (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0420): Moderate — Address Soon. DIY $150–$800, Professional $400–$2500.
- [P0421: Warm Up Catalytic Converter Efficiency Below Threshold (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0421): Moderate — Address Soon. DIY $30–$200, Professional $500–$2500.
- [P0430: Catalyst System Efficiency Below Threshold (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0430): Moderate — Address Soon. DIY $150–$900, Professional $400–$2500.
- [P0440: Evaporative Emission Control System Malfunction](https://crewchief.cc/wiki/obd2-codes/P0440): Moderate — Address Soon. DIY $15–$250, Professional $100–$650.
- [P0441: Evaporative Emission Control System Incorrect Purge Flow](https://crewchief.cc/wiki/obd2-codes/P0441): Low — Monitor. DIY $15–$80, Professional $150–$400.
- [P0442: Evaporative Emission Control System Leak Detected (Small Leak)](https://crewchief.cc/wiki/obd2-codes/P0442): Moderate — Address Soon. DIY $10–$150, Professional $100–$600.
- [P0443: Evaporative Emission Control System Purge Control Valve Circuit](https://crewchief.cc/wiki/obd2-codes/P0443): Low — Monitor. DIY $15–$70, Professional $150–$350.
- [P0444: Evaporative Emission Control System Purge Control Valve Circuit Open](https://crewchief.cc/wiki/obd2-codes/P0444): Low — Monitor. DIY $5–$65, Professional $100–$300.
- [P0445: Evaporative Emission Control System Purge Control Valve Circuit Shorted](https://crewchief.cc/wiki/obd2-codes/P0445): Low — Monitor. DIY $5–$70, Professional $100–$350.
- [P0446: Evaporative Emission Control System Vent Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0446): Low — Monitor. DIY $20–$100, Professional $150–$400.
- [P0447: Evaporative Emission Control System Vent Control Circuit Open](https://crewchief.cc/wiki/obd2-codes/P0447): Low — Monitor. DIY $5–$80, Professional $100–$350.
- [P0448: Evaporative Emission Control System Vent Control Circuit Shorted](https://crewchief.cc/wiki/obd2-codes/P0448): Low — Monitor. DIY $5–$80, Professional $100–$400.
- [P0449: Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0449): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P0450: Evaporative Emission Control System Pressure Sensor/Switch Malfunction](https://crewchief.cc/wiki/obd2-codes/P0450): Low — Monitor. DIY $10–$120, Professional $150–$400.
- [P0451: Evaporative Emission Control System Pressure Sensor/Switch Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0451): Low — Monitor. DIY $10–$120, Professional $150–$400.
- [P0452: Evaporative Emission Control System Pressure Sensor/Switch Low Input](https://crewchief.cc/wiki/obd2-codes/P0452): Low — Monitor. DIY $10–$120, Professional $150–$400.
- [P0453: Evaporative Emission Control System Pressure Sensor/Switch High](https://crewchief.cc/wiki/obd2-codes/P0453): Low — Monitor. DIY $25–$120, Professional $150–$450.
- [P0455: Evaporative Emission Control System Leak Detected (Large Leak)](https://crewchief.cc/wiki/obd2-codes/P0455): Moderate — Address Soon. DIY $5–$150, Professional $80–$800.
- [P0456: Evaporative Emission System Leak Detected (Very Small Leak)](https://crewchief.cc/wiki/obd2-codes/P0456): Low — Monitor. DIY $10–$80, Professional $100–$500.
- [P0457: Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)](https://crewchief.cc/wiki/obd2-codes/P0457): Low — Monitor. DIY $5–$50, Professional $50–$350.
- [P0458: Evaporative Emission System Purge Control Valve Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0458): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P0459: Evaporative Emission System Purge Control Valve Circuit High](https://crewchief.cc/wiki/obd2-codes/P0459): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P0460: Fuel Level Sensor 'A' Circuit](https://crewchief.cc/wiki/obd2-codes/P0460): Moderate — Address Soon. DIY $50–$200, Professional $250–$700.
- [P0461: Fuel Level Sensor 'A' Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0461): Moderate — Address Soon. DIY $50–$200, Professional $250–$700.
- [P0462: Fuel Level Sensor 'A' Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0462): Moderate — Address Soon. DIY $40–$200, Professional $200–$650.
- [P0463: Fuel Level Sensor 'A' Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0463): Moderate — Address Soon. DIY $40–$200, Professional $200–$650.
- [P0464: Fuel Level Sensor 'A' Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0464): Moderate — Address Soon. DIY $50–$200, Professional $250–$700.
- [P0480: Cooling Fan 1 Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0480): Moderate — Address Soon. DIY $15–$250, Professional $150–$550.
- [P0481: Cooling Fan 2 Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0481): Moderate — Address Soon. DIY $15–$250, Professional $150–$550.
- [P0491: Secondary Air Injection System Insufficient Flow (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0491): Moderate — Address Soon. DIY $30–$250, Professional $300–$900.
- [P0492: Secondary Air Injection System Insufficient Flow (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P0492): Moderate — Address Soon. DIY $30–$250, Professional $300–$900.
- [P0500: Vehicle Speed Sensor (VSS) Malfunction](https://crewchief.cc/wiki/obd2-codes/P0500): Moderate — Address Soon. DIY $15–$80, Professional $120–$350.
- [P0501: Vehicle Speed Sensor Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0501): Moderate — Address Soon. DIY $15–$80, Professional $130–$400.
- [P0502: Vehicle Speed Sensor Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0502): Moderate — Address Soon. DIY $10–$75, Professional $100–$300.
- [P0503: Vehicle Speed Sensor Intermittent/Erratic/High](https://crewchief.cc/wiki/obd2-codes/P0503): Moderate — Address Soon. DIY $10–$80, Professional $120–$350.
- [P0504: Brake Switch "A"/"B" Correlation](https://crewchief.cc/wiki/obd2-codes/P0504): High — Immediate Attention. DIY $10–$50, Professional $80–$250.
- [P0505: Idle Air Control System Malfunction](https://crewchief.cc/wiki/obd2-codes/P0505): Moderate — Address Soon. DIY $15–$180, Professional $120–$550.
- [P0506: Idle Air Control System RPM Lower Than Expected](https://crewchief.cc/wiki/obd2-codes/P0506): Moderate — Address Soon. DIY $5–$60, Professional $80–$300.
- [P0507: Idle Air Control System RPM Higher Than Expected](https://crewchief.cc/wiki/obd2-codes/P0507): Moderate — Address Soon. DIY $5–$80, Professional $100–$350.
- [P0508: Idle Air Control System Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0508): Moderate — Address Soon. DIY $15–$100, Professional $120–$350.
- [P0509: Idle Air Control System Circuit High](https://crewchief.cc/wiki/obd2-codes/P0509): Moderate — Address Soon. DIY $15–$100, Professional $120–$350.
- [P0510: Closed Throttle Position Switch Malfunction](https://crewchief.cc/wiki/obd2-codes/P0510): Moderate — Address Soon. DIY $15–$100, Professional $120–$400.
- [P0520: Engine Oil Pressure Sensor/Switch Circuit](https://crewchief.cc/wiki/obd2-codes/P0520): High — Immediate Attention. DIY $10–$40, Professional $80–$250.
- [P0521: Engine Oil Pressure Sensor/Switch Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0521): High — Immediate Attention. DIY $10–$45, Professional $100–$300.
- [P0522: Engine Oil Pressure Sensor/Switch Low Voltage](https://crewchief.cc/wiki/obd2-codes/P0522): High — Immediate Attention. DIY $10–$40, Professional $80–$250.
- [P0523: Engine Oil Pressure Sensor/Switch High Voltage](https://crewchief.cc/wiki/obd2-codes/P0523): Moderate — Address Soon. DIY $10–$40, Professional $80–$250.
- [P0524: Engine Oil Pressure Too Low](https://crewchief.cc/wiki/obd2-codes/P0524): Stop Immediately. DIY $10–$80, Professional $100–$1800.
- [P0530: A/C Refrigerant Pressure Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0530): Low — Monitor. DIY $15–$60, Professional $100–$350.
- [P0532: A/C Refrigerant Pressure Sensor Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0532): Low — Monitor. DIY $15–$60, Professional $100–$400.
- [P0533: A/C Refrigerant Pressure Sensor Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0533): Low — Monitor. DIY $15–$60, Professional $100–$450.
- [P0560: System Voltage](https://crewchief.cc/wiki/obd2-codes/P0560): Limit Driving. DIY $20–$250, Professional $80–$600.
- [P0562: System Voltage Low](https://crewchief.cc/wiki/obd2-codes/P0562): Moderate — Address Soon. DIY $15–$250, Professional $100–$800.
- [P0600: Serial Communication Link Malfunction](https://crewchief.cc/wiki/obd2-codes/P0600): Moderate — Address Soon. DIY $10–$150, Professional $150–$800.
- [P0601: Internal Control Module Memory Check Sum Error](https://crewchief.cc/wiki/obd2-codes/P0601): Moderate — Address Soon. DIY $20–$100, Professional $300–$1200.
- [P0602: Control Module Programming Error](https://crewchief.cc/wiki/obd2-codes/P0602): Moderate — Address Soon. DIY $0–$50, Professional $150–$1000.
- [P0603: Internal Control Module Keep Alive Memory (KAM) Error](https://crewchief.cc/wiki/obd2-codes/P0603): Moderate — Address Soon. DIY $10–$200, Professional $100–$900.
- [P0604: Internal Control Module Random Access Memory (RAM) Error](https://crewchief.cc/wiki/obd2-codes/P0604): Moderate — Address Soon. DIY $20–$100, Professional $300–$1300.
- [P0605: Internal Control Module Read Only Memory (ROM) Error](https://crewchief.cc/wiki/obd2-codes/P0605): Moderate — Address Soon. DIY $20–$100, Professional $350–$1400.
- [P0606: ECM/PCM Processor Fault](https://crewchief.cc/wiki/obd2-codes/P0606): High — Immediate Attention. DIY $20–$100, Professional $400–$1500.
- [P0607: Control Module Performance](https://crewchief.cc/wiki/obd2-codes/P0607): High — Immediate Attention. DIY $20–$100, Professional $400–$1400.
- [P0615: Starter Relay Circuit](https://crewchief.cc/wiki/obd2-codes/P0615): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P0616: Starter Relay Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0616): Moderate — Address Soon. DIY $10–$120, Professional $100–$450.
- [P0617: Starter Relay Circuit High](https://crewchief.cc/wiki/obd2-codes/P0617): Moderate — Address Soon. DIY $10–$120, Professional $100–$500.
- [P0620: Generator Control Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0620): Moderate — Address Soon. DIY $30–$250, Professional $200–$800.
- [P0625: Generator Field/F Terminal Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0625): Moderate — Address Soon. DIY $20–$250, Professional $200–$750.
- [P0627: Fuel Pump A Control Circuit/Open](https://crewchief.cc/wiki/obd2-codes/P0627): Stop Immediately. DIY $25–$400, Professional $150–$900.
- [P0630: VIN Not Programmed or Incompatible — ECM/PCM](https://crewchief.cc/wiki/obd2-codes/P0630): High — Immediate Attention. DIY $0–$50, Professional $150–$1000.
- [P0638: Throttle Actuator Control Range/Performance (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P0638): High — Immediate Attention. DIY $10–$300, Professional $200–$700.
- [P0661: Intake Manifold Tuning Valve Control Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0661): Moderate — Address Soon. DIY $25–$120, Professional $150–$450.
- [P0700: Transmission Control System Malfunction](https://crewchief.cc/wiki/obd2-codes/P0700): Moderate — Address Soon. DIY $30–$500, Professional $150–$4500.
- [P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)](https://crewchief.cc/wiki/obd2-codes/P0705): Moderate — Address Soon. DIY $25–$150, Professional $150–$400.
- [P0706: Transmission Range Sensor "A" Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0706): Moderate — Address Soon. DIY $25–$150, Professional $150–$450.
- [P0710: Transmission Fluid Temperature Sensor "A" Circuit](https://crewchief.cc/wiki/obd2-codes/P0710): Moderate — Address Soon. DIY $15–$80, Professional $150–$400.
- [P0711: Transmission Fluid Temperature Sensor "A" Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0711): Moderate — Address Soon. DIY $15–$100, Professional $150–$400.
- [P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input](https://crewchief.cc/wiki/obd2-codes/P0712): Moderate — Address Soon. DIY $15–$80, Professional $100–$350.
- [P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P0713): Moderate — Address Soon. DIY $15–$80, Professional $100–$350.
- [P0714: Transmission Fluid Temperature Sensor "A" Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0714): Moderate — Address Soon. DIY $15–$100, Professional $100–$400.
- [P0715: Input/Turbine Speed Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0715): Moderate — Address Soon. DIY $25–$150, Professional $150–$500.
- [P0716: Input/Turbine Speed Sensor "A" Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0716): Moderate — Address Soon. DIY $20–$80, Professional $150–$500.
- [P0717: Input/Turbine Speed Sensor "A" Circuit No Signal](https://crewchief.cc/wiki/obd2-codes/P0717): High — Immediate Attention. DIY $20–$100, Professional $200–$600.
- [P0718: Input/Turbine Speed Sensor "A" Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0718): Moderate — Address Soon. DIY $20–$100, Professional $150–$500.
- [P0719: Torque Converter/Brake Switch "B" Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0719): Moderate — Address Soon. DIY $5–$40, Professional $75–$250.
- [P0720: Output Speed Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0720): Moderate — Address Soon. DIY $40–$150, Professional $150–$450.
- [P0721: Output Speed Sensor Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0721): Moderate — Address Soon. DIY $15–$80, Professional $150–$450.
- [P0722: Output Speed Sensor Circuit No Signal](https://crewchief.cc/wiki/obd2-codes/P0722): High — Immediate Attention. DIY $15–$80, Professional $200–$500.
- [P0725: Engine Speed Input Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0725): Moderate — Address Soon. DIY $20–$100, Professional $150–$500.
- [P0730: Incorrect Gear Ratio](https://crewchief.cc/wiki/obd2-codes/P0730): High — Immediate Attention. DIY $20–$250, Professional $200–$5000.
- [P0731: Gear 1 Incorrect Ratio](https://crewchief.cc/wiki/obd2-codes/P0731): Moderate — Address Soon. DIY $20–$200, Professional $200–$1500.
- [P0732: Gear 2 Incorrect Ratio](https://crewchief.cc/wiki/obd2-codes/P0732): Moderate — Address Soon. DIY $20–$200, Professional $200–$1500.
- [P0733: Gear 3 Incorrect Ratio](https://crewchief.cc/wiki/obd2-codes/P0733): Moderate — Address Soon. DIY $20–$200, Professional $250–$1500.
- [P0734: Gear 4 Incorrect Ratio](https://crewchief.cc/wiki/obd2-codes/P0734): Moderate — Address Soon. DIY $20–$200, Professional $250–$1600.
- [P0735: Gear 5 Incorrect Ratio](https://crewchief.cc/wiki/obd2-codes/P0735): Moderate — Address Soon. DIY $20–$200, Professional $250–$1600.
- [P0740: Torque Converter Clutch Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0740): Moderate — Address Soon. DIY $15–$150, Professional $250–$1000.
- [P0741: Torque Converter Clutch Circuit Performance or Stuck Off](https://crewchief.cc/wiki/obd2-codes/P0741): Moderate — Address Soon. DIY $15–$150, Professional $250–$1200.
- [P0742: Torque Converter Clutch Circuit Stuck On](https://crewchief.cc/wiki/obd2-codes/P0742): High — Immediate Attention. DIY $15–$150, Professional $300–$1300.
- [P0743: Torque Converter Clutch Circuit Electrical](https://crewchief.cc/wiki/obd2-codes/P0743): Moderate — Address Soon. DIY $15–$120, Professional $200–$900.
- [P0744: Torque Converter Clutch Circuit Intermittent](https://crewchief.cc/wiki/obd2-codes/P0744): Moderate — Address Soon. DIY $15–$120, Professional $200–$900.
- [P0748: Pressure Control Solenoid 'A' Electrical](https://crewchief.cc/wiki/obd2-codes/P0748): High — Immediate Attention. DIY $30–$150, Professional $200–$600.
- [P0750: Shift Solenoid A Malfunction](https://crewchief.cc/wiki/obd2-codes/P0750): Moderate — Address Soon. DIY $50–$250, Professional $200–$800.
- [P0751: Shift Solenoid 'A' Performance or Stuck Off](https://crewchief.cc/wiki/obd2-codes/P0751): High — Immediate Attention. DIY $30–$200, Professional $200–$800.
- [P0752: Shift Solenoid 'A' Stuck On](https://crewchief.cc/wiki/obd2-codes/P0752): High — Immediate Attention. DIY $30–$200, Professional $200–$800.
- [P0753: Shift Solenoid 'A' Electrical](https://crewchief.cc/wiki/obd2-codes/P0753): High — Immediate Attention. DIY $30–$200, Professional $200–$700.
- [P0755: Shift Solenoid 'B' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0755): High — Immediate Attention. DIY $30–$200, Professional $200–$800.
- [P0756: Shift Solenoid 'B' Performance or Stuck Off](https://crewchief.cc/wiki/obd2-codes/P0756): Moderate — Address Soon. DIY $15–$100, Professional $150–$450.
- [P0757: Shift Solenoid 'B' Stuck On](https://crewchief.cc/wiki/obd2-codes/P0757): Moderate — Address Soon. DIY $15–$100, Professional $150–$450.
- [P0758: Shift Solenoid 'B' Electrical](https://crewchief.cc/wiki/obd2-codes/P0758): Moderate — Address Soon. DIY $15–$80, Professional $150–$400.
- [P0760: Shift Solenoid 'C' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0760): Moderate — Address Soon. DIY $15–$100, Professional $150–$500.
- [P0761: Shift Solenoid 'C' Performance or Stuck Off](https://crewchief.cc/wiki/obd2-codes/P0761): Moderate — Address Soon. DIY $15–$100, Professional $150–$500.
- [P0765: Shift Solenoid 'D' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0765): Moderate — Address Soon. DIY $15–$100, Professional $150–$500.
- [P0770: Shift Solenoid 'E' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0770): Moderate — Address Soon. DIY $15–$100, Professional $150–$500.
- [P0775: Pressure Control Solenoid 'B' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0775): Moderate — Address Soon. DIY $20–$120, Professional $200–$600.
- [P0777: Pressure Control Solenoid B Stuck On](https://crewchief.cc/wiki/obd2-codes/P0777): Limit Driving. DIY $30–$180, Professional $150–$600.
- [P0780: Shift Malfunction](https://crewchief.cc/wiki/obd2-codes/P0780): Moderate — Address Soon. DIY $15–$80, Professional $100–$1200.
- [P0785: Shift/Timing Solenoid 'A' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0785): Moderate — Address Soon. DIY $20–$120, Professional $200–$550.
- [P0790: Normal/Performance Switch Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P0790): Low — Monitor. DIY $20–$100, Professional $100–$350.
- [P0795: Pressure Control Solenoid 'C' Malfunction](https://crewchief.cc/wiki/obd2-codes/P0795): Moderate — Address Soon. DIY $20–$120, Professional $200–$600.
- [P0846: Transmission Fluid Pressure Sensor B](https://crewchief.cc/wiki/obd2-codes/P0846): Moderate — Limit Driving, Address Soon. DIY $20–$120, Professional $150–$450.
- [P0847: Transmission Fluid Pressure Sensor B Low](https://crewchief.cc/wiki/obd2-codes/P0847): Limit Driving. DIY $20–$80, Professional $150–$400.
- [P0868: Transmission Fluid Pressure Low](https://crewchief.cc/wiki/obd2-codes/P0868): High — Immediate Attention. DIY $15–$150, Professional $150–$1500.
- [P0871: Transmission Fluid Pressure Sensor/Switch 'C' Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P0871): Moderate — Address Soon. DIY $25–$150, Professional $150–$800.
- [P0894: Transmission Component Slipping](https://crewchief.cc/wiki/obd2-codes/P0894): High — Immediate Attention. DIY $15–$150, Professional $200–$3500.
- [P0962: Pressure Control Solenoid A Control Circuit Low](https://crewchief.cc/wiki/obd2-codes/P0962): Limit Driving. DIY $30–$120, Professional $150–$500.
- [P0A80: Replace Hybrid Battery Pack](https://crewchief.cc/wiki/obd2-codes/P0A80): Limit Driving. DIY $1200–$3500, Professional $2500–$8000.
- [P0C00: HV Battery Pack State of Charge Low](https://crewchief.cc/wiki/obd2-codes/P0C00): Limit Driving. DIY $20–$150, Professional $150–$8000.
- [P1000: OBD-II System Readiness Test Not Complete](https://crewchief.cc/wiki/obd2-codes/P1000): Low — Monitor. DIY $0–$0, Professional $0–$100.
- [P1077: Intake Manifold Runner Control System Malfunction (Low RPM)](https://crewchief.cc/wiki/obd2-codes/P1077): Low — Monitor. DIY $15–$80, Professional $150–$400.
- [P1078: Intake Manifold Runner Control System Malfunction (High RPM)](https://crewchief.cc/wiki/obd2-codes/P1078): Low — Monitor. DIY $15–$80, Professional $150–$400.
- [P1083: Fuel Control Mixture Lean (Bank 1 Sensor 1)](https://crewchief.cc/wiki/obd2-codes/P1083): Moderate — Address Soon. DIY $15–$120, Professional $150–$500.
- [P1110: Electronic Throttle System (ETS) Malfunction](https://crewchief.cc/wiki/obd2-codes/P1110): Moderate — Address Soon. DIY $15–$80, Professional $150–$600.
- [P1121: Throttle Position Sensor Signal Invalid](https://crewchief.cc/wiki/obd2-codes/P1121): Moderate — Address Soon. DIY $20–$100, Professional $100–$400.
- [P1128: Long Term Fuel Trim Additive — Bank 1 System Too Lean](https://crewchief.cc/wiki/obd2-codes/P1128): Moderate — Address Soon. DIY $15–$180, Professional $150–$500.
- [P1130: Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction – Bank 1, Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1130): Moderate — Address Soon. DIY $80–$200, Professional $200–$500.
- [P1131: Lack of Upstream Heated Oxygen Sensor Switch — Sensor Indicates Lean (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P1131): Moderate — Address Soon. DIY $20–$80, Professional $150–$450.
- [P1133: HO2S Insufficient Switching Bank 1 Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1133): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P1135: Air/Fuel Sensor Heater Circuit Response – Bank 1, Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1135): Moderate — Address Soon. DIY $70–$180, Professional $180–$450.
- [P1136: Long Term Fuel Trim Additive Fuel — Bank 1 System Too Lean](https://crewchief.cc/wiki/obd2-codes/P1136): Moderate — Address Soon. DIY $15–$200, Professional $180–$600.
- [P1148: Closed Loop Control Function Bank 1](https://crewchief.cc/wiki/obd2-codes/P1148): Moderate — Address Soon. DIY $80–$200, Professional $200–$500.
- [P1150: Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction – Bank 2, Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1150): Moderate — Address Soon. DIY $80–$200, Professional $200–$500.
- [P1151: Lack of Upstream Heated Oxygen Sensor Switch — Sensor Indicates Lean (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P1151): Moderate — Address Soon. DIY $20–$80, Professional $150–$450.
- [P1153: HO2S Insufficient Switching Bank 2 Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1153): Low — Monitor. DIY $20–$80, Professional $150–$400.
- [P1155: Air/Fuel Sensor Heater Circuit Response – Bank 2, Sensor 1](https://crewchief.cc/wiki/obd2-codes/P1155): Moderate — Address Soon. DIY $70–$180, Professional $180–$450.
- [P1157: Air/Fuel Ratio (A/F) Sensor 1 Range/Performance Problem](https://crewchief.cc/wiki/obd2-codes/P1157): Moderate — Address Soon. DIY $50–$180, Professional $200–$450.
- [P1159: Air/Fuel Ratio (A/F) Sensor 1 AFS+ Terminal Low Voltage](https://crewchief.cc/wiki/obd2-codes/P1159): Moderate — Address Soon. DIY $60–$200, Professional $200–$500.
- [P1166: Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1166): Low — Monitor. DIY $5–$200, Professional $150–$400.
- [P1167: Air/Fuel Ratio Sensor 1 Heater System Malfunction](https://crewchief.cc/wiki/obd2-codes/P1167): Low — Monitor. DIY $5–$200, Professional $150–$400.
- [P1168: Closed Loop Control Function Bank 2](https://crewchief.cc/wiki/obd2-codes/P1168): Moderate — Address Soon. DIY $80–$200, Professional $200–$500.
- [P1186: O2 Sensor Heater Control Circuit — Bank 1 Sensor 2](https://crewchief.cc/wiki/obd2-codes/P1186): Low — Monitor. DIY $40–$120, Professional $150–$400.
- [P1188: Fuel Control Bank 1 Sensor 1 — Lean Limit Exceeded](https://crewchief.cc/wiki/obd2-codes/P1188): Moderate — Address Soon. DIY $20–$150, Professional $180–$550.
- [P1211: ABS/TCS Control Unit Communication Malfunction](https://crewchief.cc/wiki/obd2-codes/P1211): Moderate — Address Soon. DIY $30–$150, Professional $200–$700.
- [P1217: Engine Over Temperature](https://crewchief.cc/wiki/obd2-codes/P1217): Critical — Do Not Drive. DIY $15–$120, Professional $150–$600.
- [P1233: Fuel Pump Driver Module Disabled or Offline](https://crewchief.cc/wiki/obd2-codes/P1233): High — Immediate Attention. DIY $10–$150, Professional $200–$600.
- [P1235: Fuel Pump Control Out of Range](https://crewchief.cc/wiki/obd2-codes/P1235): High — Immediate Attention. DIY $50–$200, Professional $250–$700.
- [P1250: Fuel Pressure Regulator Control Solenoid Valve Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1250): Moderate — Address Soon. DIY $50–$200, Professional $200–$500.
- [P1258: Engine Coolant Overtemperature — Protection Mode Active](https://crewchief.cc/wiki/obd2-codes/P1258): Critical — Do Not Drive. DIY $15–$200, Professional $200–$1500.
- [P1259: VTEC System Malfunction](https://crewchief.cc/wiki/obd2-codes/P1259): Moderate — Address Soon. DIY $10–$150, Professional $150–$500.
- [P1260: Theft Detected — Vehicle Immobilized (PATS)](https://crewchief.cc/wiki/obd2-codes/P1260): High — Immediate Attention. DIY $5–$50, Professional $100–$500.
- [P1281: Engine Is Cold Too Long](https://crewchief.cc/wiki/obd2-codes/P1281): Low — Monitor. DIY $10–$50, Professional $100–$300.
- [P1282: Fuel Pump Relay Control Circuit Condition](https://crewchief.cc/wiki/obd2-codes/P1282): Moderate — Address Soon. DIY $10–$40, Professional $75–$300.
- [P1285: Cylinder Head Temperature Sensor Out of Self-Test Range](https://crewchief.cc/wiki/obd2-codes/P1285): Moderate — Address Soon. DIY $15–$60, Professional $150–$400.
- [P1289: Cylinder Head Temperature Sensor Circuit High Input](https://crewchief.cc/wiki/obd2-codes/P1289): Moderate — Address Soon. DIY $15–$60, Professional $150–$400.
- [P1296: Engine Cooling System Malfunction — Temperature Not Reached](https://crewchief.cc/wiki/obd2-codes/P1296): Moderate — Address Soon. DIY $15–$80, Professional $150–$400.
- [P1299: Cylinder Head Overtemperature Protection Active](https://crewchief.cc/wiki/obd2-codes/P1299): Critical — Do Not Drive. DIY $10–$100, Professional $150–$800.
- [P1300: Igniter Circuit Malfunction No. 1](https://crewchief.cc/wiki/obd2-codes/P1300): Moderate — Address Soon. DIY $25–$100, Professional $100–$350.
- [P1310: Igniter Circuit Malfunction No. 3](https://crewchief.cc/wiki/obd2-codes/P1310): Moderate — Address Soon. DIY $25–$100, Professional $100–$350.
- [P1320: Ignition Signal Primary](https://crewchief.cc/wiki/obd2-codes/P1320): Moderate — Address Soon. DIY $40–$250, Professional $150–$500.
- [P1335: Crankshaft Position Sensor (REF Signal Circuit)](https://crewchief.cc/wiki/obd2-codes/P1335): Moderate — Address Soon. DIY $25–$100, Professional $150–$400.
- [P1336: Crankshaft Position Sensor (Learned Value Not Stored)](https://crewchief.cc/wiki/obd2-codes/P1336): Moderate — Address Soon. DIY $0–$100, Professional $80–$350.
- [P1345: Crankshaft Position — Camshaft Position Correlation](https://crewchief.cc/wiki/obd2-codes/P1345): Moderate — Address Soon. DIY $25–$150, Professional $200–$750.
- [P1346: VVT Sensor / Camshaft Position Sensor Circuit Range/Performance – Bank 1](https://crewchief.cc/wiki/obd2-codes/P1346): Moderate — Address Soon. DIY $30–$150, Professional $150–$500.
- [P1349: VANOS Intake Camshaft Timing Control Fault — Bank 1](https://crewchief.cc/wiki/obd2-codes/P1349): Moderate — Address Soon. DIY $30–$300, Professional $300–$1200.
- [P1351: VVT Sensor / Camshaft Position Sensor Circuit Range/Performance – Bank 2](https://crewchief.cc/wiki/obd2-codes/P1351): Moderate — Address Soon. DIY $30–$150, Professional $150–$500.
- [P1354: Variable Valve Timing System Malfunction – Bank 2](https://crewchief.cc/wiki/obd2-codes/P1354): Moderate — Address Soon. DIY $30–$200, Professional $200–$800.
- [P1361: Ignition Control (IC) Circuit Low Voltage](https://crewchief.cc/wiki/obd2-codes/P1361): Moderate — Address Soon. DIY $40–$200, Professional $200–$600.
- [P1362: Top Dead Center (TDC) Sensor 1 No Signal](https://crewchief.cc/wiki/obd2-codes/P1362): High — Immediate Attention. DIY $80–$250, Professional $250–$600.
- [P1380: Misfire Detected — Rough Road Data Not Available](https://crewchief.cc/wiki/obd2-codes/P1380): Low — Monitor. DIY $10–$100, Professional $150–$600.
- [P1381: Cylinder Position (CYP) Sensor Intermittent Interruption](https://crewchief.cc/wiki/obd2-codes/P1381): Moderate — Address Soon. DIY $20–$120, Professional $150–$450.
- [P1382: Cylinder Position (CYP) Sensor 1 No Signal](https://crewchief.cc/wiki/obd2-codes/P1382): High — Immediate Attention. DIY $80–$250, Professional $250–$600.
- [P1384: Knock Sensor 3 Circuit — Signal Malfunction](https://crewchief.cc/wiki/obd2-codes/P1384): Moderate — Address Soon. DIY $30–$100, Professional $150–$400.
- [P1388: Internal Control Module — Drive By Wire Monitoring Error](https://crewchief.cc/wiki/obd2-codes/P1388): High — Immediate Attention. DIY $50–$350, Professional $250–$900.
- [P1389: No Auto Shutdown (ASD) Relay Output Voltage at PCM](https://crewchief.cc/wiki/obd2-codes/P1389): High — Immediate Attention. DIY $10–$50, Professional $100–$500.
- [P1391: CMP or CKP Signal Intermittent Condition](https://crewchief.cc/wiki/obd2-codes/P1391): Moderate — Address Soon. DIY $20–$80, Professional $150–$500.
- [P1396: Camshaft Position Sensor Signal — Cylinder Reference Error](https://crewchief.cc/wiki/obd2-codes/P1396): Moderate — Address Soon. DIY $25–$80, Professional $150–$450.
- [P1398: Misfire Adaptive Numerator at Limit](https://crewchief.cc/wiki/obd2-codes/P1398): Moderate — Address Soon. DIY $15–$80, Professional $100–$400.
- [P1399: Random Cylinder Misfire Detected](https://crewchief.cc/wiki/obd2-codes/P1399): Moderate — Address Soon. DIY $10–$100, Professional $150–$500.
- [P1400: EGRC Solenoid Valve Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1400): Low — Monitor. DIY $20–$100, Professional $100–$350.
- [P1404: Exhaust Gas Recirculation (EGR) Closed Position Performance](https://crewchief.cc/wiki/obd2-codes/P1404): Low — Monitor. DIY $10–$80, Professional $150–$450.
- [P1416: Secondary Air Injection (AIR) System Bank 2](https://crewchief.cc/wiki/obd2-codes/P1416): Low — Monitor. DIY $30–$250, Professional $200–$600.
- [P1440: EVAP Emission Control System — Purge Valve Stuck Open](https://crewchief.cc/wiki/obd2-codes/P1440): Low — Monitor. DIY $20–$60, Professional $100–$300.
- [P1441: EVAP System Flow During Non-Purge Condition](https://crewchief.cc/wiki/obd2-codes/P1441): Low — Monitor. DIY $5–$100, Professional $100–$400.
- [P1443: EVAP Canister Purge Volume Control Valve](https://crewchief.cc/wiki/obd2-codes/P1443): Low — Monitor. DIY $25–$120, Professional $100–$350.
- [P1446: EVAP Canister Vent Control Valve Closed](https://crewchief.cc/wiki/obd2-codes/P1446): Low — Monitor. DIY $30–$100, Professional $150–$400.
- [P1448: EVAP Canister Vent Control Valve Open](https://crewchief.cc/wiki/obd2-codes/P1448): Low — Monitor. DIY $30–$100, Professional $150–$400.
- [P1450: Unable to Bleed Up Fuel Tank Vacuum](https://crewchief.cc/wiki/obd2-codes/P1450): Moderate — Address Soon. DIY $25–$100, Professional $150–$500.
- [P1451: EVAP Control System Canister Vent Solenoid Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1451): Low — Monitor. DIY $25–$80, Professional $100–$350.
- [P1456: EVAP Emission Control System Leakage (Fuel Tank Side)](https://crewchief.cc/wiki/obd2-codes/P1456): Low — Monitor. DIY $10–$50, Professional $100–$500.
- [P1457: EVAP Emission Control System Leakage (EVAP Canister Side)](https://crewchief.cc/wiki/obd2-codes/P1457): Low — Monitor. DIY $30–$120, Professional $150–$450.
- [P1460: Wide Open Throttle Air Conditioning Cutoff Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1460): Low — Monitor. DIY $15–$60, Professional $100–$350.
- [P1469: Low Air Conditioning Cycling Period](https://crewchief.cc/wiki/obd2-codes/P1469): Low — Monitor. DIY $20–$80, Professional $100–$500.
- [P1486: EVAP Leak Monitor — Pinched Hose Found](https://crewchief.cc/wiki/obd2-codes/P1486): Low — Monitor. DIY $10–$80, Professional $100–$350.
- [P1491: EGR Valve Insufficient Lift](https://crewchief.cc/wiki/obd2-codes/P1491): Low — Monitor. DIY $10–$100, Professional $150–$450.
- [P1498: EGR Valve Position Sensor Circuit High Voltage](https://crewchief.cc/wiki/obd2-codes/P1498): Low — Monitor. DIY $30–$150, Professional $150–$450.
- [P1507: Idle Control System Malfunction (RPM Lower Than Expected)](https://crewchief.cc/wiki/obd2-codes/P1507): Moderate — Address Soon. DIY $5–$80, Professional $100–$350.
- [P1513: Idle Speed Actuator — Open Circuit](https://crewchief.cc/wiki/obd2-codes/P1513): Moderate — Address Soon. DIY $30–$150, Professional $200–$500.
- [P1516: Throttle Actuator Control (TAC) Module — Throttle Actuator Position Performance](https://crewchief.cc/wiki/obd2-codes/P1516): Moderate — Address Soon. DIY $10–$200, Professional $200–$600.
- [P1518: Intake Manifold Runner Control Stuck Open](https://crewchief.cc/wiki/obd2-codes/P1518): Moderate — Address Soon. DIY $30–$150, Professional $200–$600.
- [P1519: Intake Camshaft Control Bank 1 — Malfunction](https://crewchief.cc/wiki/obd2-codes/P1519): Moderate — Address Soon. DIY $30–$200, Professional $200–$650.
- [P1542: Throttle Actuation Potentiometer — Range/Performance](https://crewchief.cc/wiki/obd2-codes/P1542): High — Immediate Attention. DIY $15–$300, Professional $200–$700.
- [P1545: Throttle Position Control Malfunction](https://crewchief.cc/wiki/obd2-codes/P1545): High — Immediate Attention. DIY $15–$300, Professional $200–$700.
- [P1564: Idle Speed Control — Throttle Position Low Voltage During Adaptation](https://crewchief.cc/wiki/obd2-codes/P1564): Moderate — Address Soon. DIY $0–$50, Professional $80–$350.
- [P1574: ASCD Vehicle Speed Sensor](https://crewchief.cc/wiki/obd2-codes/P1574): Low — Monitor. DIY $20–$100, Professional $100–$350.
- [P1604: Startability Malfunction](https://crewchief.cc/wiki/obd2-codes/P1604): Moderate — Address Soon. DIY $0–$50, Professional $80–$400.
- [P1610: Lock Mode — NATS Immobilizer Malfunction](https://crewchief.cc/wiki/obd2-codes/P1610): Critical — Do Not Drive. DIY $10–$50, Professional $100–$600.
- [P1621: Control Module Long Term Memory Performance Condition](https://crewchief.cc/wiki/obd2-codes/P1621): Moderate — Address Soon. DIY $0–$50, Professional $300–$1200.
- [P1626: Theft Deterrent Fuel Enable Signal Not Received](https://crewchief.cc/wiki/obd2-codes/P1626): Moderate — Address Soon. DIY $15–$150, Professional $150–$500.
- [P1646: EVAP Vent Solenoid Output Circuit](https://crewchief.cc/wiki/obd2-codes/P1646): Low — Monitor. DIY $20–$80, Professional $100–$350.
- [P1670: Output Driver Module 4 (Quad Driver Module 'C') Fault](https://crewchief.cc/wiki/obd2-codes/P1670): Moderate — Address Soon. DIY $10–$100, Professional $150–$600.
- [P1682: Ignition 1 Switch Circuit 2 (Driver 5 Line 2)](https://crewchief.cc/wiki/obd2-codes/P1682): Moderate — Address Soon. DIY $15–$150, Professional $100–$400.
- [P1693: Oil Control Valve (OCV) Closed Malfunction](https://crewchief.cc/wiki/obd2-codes/P1693): Moderate — Address Soon. DIY $20–$100, Professional $100–$400.
- [P1705: Direct Clutch Speed Sensor Circuit Malfunction](https://crewchief.cc/wiki/obd2-codes/P1705): Moderate — Address Soon. DIY $40–$150, Professional $150–$500.
- [P1780: Park/Neutral Position Switch Malfunction](https://crewchief.cc/wiki/obd2-codes/P1780): Moderate — Address Soon. DIY $20–$100, Professional $150–$450.
- [P1800: Variable Intake Air System Control Solenoid Valve Circuit](https://crewchief.cc/wiki/obd2-codes/P1800): Low — Monitor. DIY $25–$100, Professional $150–$400.
- [P2002: Diesel Particulate Filter Efficiency Below Threshold (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2002): Moderate — Address Soon. DIY $30–$200, Professional $300–$2500.
- [P2004: Intake Manifold Runner Control Stuck Open (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2004): Moderate — Address Soon. DIY $15–$150, Professional $150–$600.
- [P2006: Intake Manifold Runner Control Stuck Closed (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2006): Moderate — Address Soon. DIY $15–$150, Professional $150–$600.
- [P2008: Intake Manifold Runner Control Circuit/Open (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2008): Low — Monitor. DIY $20–$120, Professional $100–$450.
- [P2009: Intake Manifold Runner Control Circuit Low (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2009): Low — Monitor. DIY $20–$120, Professional $100–$450.
- [P2015: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2015): Low — Monitor. DIY $15–$100, Professional $100–$500.
- [P2017: Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2017): Low — Monitor. DIY $15–$100, Professional $100–$450.
- [P204F: Reductant System Incorrect Quantity](https://crewchief.cc/wiki/obd2-codes/P204F): Limit Driving. DIY $10–$120, Professional $150–$600.
- [P2096: Post Catalyst Fuel Trim System Too Lean (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2096): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P2097: Post Catalyst Fuel Trim System Too Rich (Bank 1)](https://crewchief.cc/wiki/obd2-codes/P2097): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P2098: Post Catalyst Fuel Trim System Too Lean (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P2098): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P2099: Post Catalyst Fuel Trim System Too Rich (Bank 2)](https://crewchief.cc/wiki/obd2-codes/P2099): Moderate — Address Soon. DIY $20–$200, Professional $150–$800.
- [P20EE: SCR NOx Catalyst Efficiency Below Threshold](https://crewchief.cc/wiki/obd2-codes/P20EE): Limit Driving. DIY $50–$200, Professional $300–$2800.
- [P2100: Throttle Actuator Control Motor Circuit/Open](https://crewchief.cc/wiki/obd2-codes/P2100): High — Immediate Attention. DIY $100–$400, Professional $300–$1000.
- [P2101: Throttle Actuator Control Motor Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P2101): High — Immediate Attention. DIY $10–$400, Professional $150–$1000.
- [P2104: Throttle Actuator Control System — Forced Idle](https://crewchief.cc/wiki/obd2-codes/P2104): High — Immediate Attention. DIY $50–$400, Professional $200–$1200.
- [P2105: Throttle Actuator Control System — Forced Engine Shutdown](https://crewchief.cc/wiki/obd2-codes/P2105): Critical — Do Not Drive. DIY $100–$500, Professional $300–$1500.
- [P2106: Throttle Actuator Control System — Forced Limited Power](https://crewchief.cc/wiki/obd2-codes/P2106): High — Immediate Attention. DIY $50–$400, Professional $200–$1200.
- [P2108: Throttle Actuator Control Module Performance](https://crewchief.cc/wiki/obd2-codes/P2108): High — Immediate Attention. DIY $100–$500, Professional $300–$1500.
- [P2110: Throttle Actuator Control System — Forced Limited RPM](https://crewchief.cc/wiki/obd2-codes/P2110): High — Immediate Attention. DIY $50–$400, Professional $200–$1200.
- [P2111: Throttle Actuator Control System — Stuck Open](https://crewchief.cc/wiki/obd2-codes/P2111): Critical — Do Not Drive. DIY $10–$400, Professional $200–$1000.
- [P2112: Throttle Actuator Control System — Stuck Closed](https://crewchief.cc/wiki/obd2-codes/P2112): High — Immediate Attention. DIY $10–$400, Professional $200–$1000.
- [P2118: Throttle Actuator Control Motor Current Range/Performance](https://crewchief.cc/wiki/obd2-codes/P2118): Moderate — Address Soon. DIY $15–$80, Professional $200–$800.
- [P2119: Throttle Actuator Control Throttle Body Range/Performance](https://crewchief.cc/wiki/obd2-codes/P2119): Moderate — Address Soon. DIY $10–$75, Professional $150–$700.
- [P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2122): Moderate — Address Soon. DIY $50–$200, Professional $150–$500.
- [P2125: Throttle/Pedal Position Sensor/Switch "E" Circuit](https://crewchief.cc/wiki/obd2-codes/P2125): Moderate — Address Soon. DIY $50–$200, Professional $150–$500.
- [P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2127): Moderate — Address Soon. DIY $50–$200, Professional $150–$500.
- [P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High](https://crewchief.cc/wiki/obd2-codes/P2128): Moderate — Address Soon. DIY $50–$200, Professional $150–$550.
- [P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation](https://crewchief.cc/wiki/obd2-codes/P2135): High — Immediate Attention. DIY $15–$100, Professional $200–$750.
- [P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation](https://crewchief.cc/wiki/obd2-codes/P2138): High — Immediate Attention. DIY $50–$250, Professional $200–$700.
- [P2176: Throttle Actuator Control System - Idle Position Not Learned](https://crewchief.cc/wiki/obd2-codes/P2176): Low — Monitor. DIY $0–$30, Professional $75–$250.
- [P2177: System Too Lean Off Idle - Bank 1](https://crewchief.cc/wiki/obd2-codes/P2177): Moderate — Address Soon. DIY $10–$150, Professional $100–$500.
- [P2178: System Too Rich Off Idle - Bank 1](https://crewchief.cc/wiki/obd2-codes/P2178): Moderate — Address Soon. DIY $15–$150, Professional $100–$500.
- [P2179: System Too Lean Off Idle - Bank 2](https://crewchief.cc/wiki/obd2-codes/P2179): Moderate — Address Soon. DIY $10–$150, Professional $100–$500.
- [P2187: System Too Lean at Idle - Bank 1](https://crewchief.cc/wiki/obd2-codes/P2187): Moderate — Address Soon. DIY $5–$100, Professional $80–$400.
- [P2188: System Too Rich at Idle - Bank 1](https://crewchief.cc/wiki/obd2-codes/P2188): Moderate — Address Soon. DIY $10–$120, Professional $100–$400.
- [P2195: O2 Sensor Signal Biased/Stuck Lean - Bank 1 Sensor 1](https://crewchief.cc/wiki/obd2-codes/P2195): Moderate — Address Soon. DIY $25–$100, Professional $100–$350.
- [P2196: O2 Sensor Signal Biased/Stuck Rich - Bank 1 Sensor 1](https://crewchief.cc/wiki/obd2-codes/P2196): Moderate — Address Soon. DIY $25–$100, Professional $100–$400.
- [P2197: O2 Sensor Signal Biased/Stuck Lean - Bank 2 Sensor 1](https://crewchief.cc/wiki/obd2-codes/P2197): Moderate — Address Soon. DIY $25–$100, Professional $100–$350.
- [P219A: Air/Fuel Ratio Imbalance Bank 1](https://crewchief.cc/wiki/obd2-codes/P219A): Moderate — Address Soon. DIY $15–$120, Professional $150–$650.
- [P2270: O2 Sensor Signal Biased/Stuck Lean - Bank 1 Sensor 2](https://crewchief.cc/wiki/obd2-codes/P2270): Low — Monitor. DIY $25–$80, Professional $100–$300.
- [P2271: O2 Sensor Signal Biased/Stuck Rich - Bank 1 Sensor 2](https://crewchief.cc/wiki/obd2-codes/P2271): Low — Monitor. DIY $25–$80, Professional $100–$300.
- [P2279: Intake Air System Leak](https://crewchief.cc/wiki/obd2-codes/P2279): Moderate — Address Soon. DIY $5–$75, Professional $80–$400.
- [P2300: Ignition Coil "A" Primary Control Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2300): Moderate — Address Soon. DIY $30–$120, Professional $150–$400.
- [P2301: Ignition Coil "A" Primary Control Circuit High](https://crewchief.cc/wiki/obd2-codes/P2301): Moderate — Address Soon. DIY $30–$120, Professional $150–$400.
- [P2302: Ignition Coil "A" Secondary Circuit](https://crewchief.cc/wiki/obd2-codes/P2302): Moderate — Address Soon. DIY $20–$130, Professional $150–$450.
- [P2303: Ignition Coil "B" Primary Control Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2303): Moderate — Address Soon. DIY $30–$120, Professional $150–$400.
- [P2400: Evaporative Emission System Leak Detection Pump Control Circuit](https://crewchief.cc/wiki/obd2-codes/P2400): Low — Monitor. DIY $20–$150, Professional $150–$450.
- [P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2401): Low — Monitor. DIY $20–$150, Professional $150–$450.
- [P2402: Evaporative Emission System Leak Detection Pump Control Circuit High](https://crewchief.cc/wiki/obd2-codes/P2402): Low — Monitor. DIY $20–$150, Professional $150–$450.
- [P2404: Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance](https://crewchief.cc/wiki/obd2-codes/P2404): Low — Monitor. DIY $10–$175, Professional $100–$500.
- [P2413: Exhaust Gas Recirculation System Performance](https://crewchief.cc/wiki/obd2-codes/P2413): Moderate — Address Soon. DIY $15–$100, Professional $150–$500.
- [P2418: Evaporative Emission System Switching Valve Control Circuit/Open](https://crewchief.cc/wiki/obd2-codes/P2418): Low — Monitor. DIY $25–$120, Professional $120–$350.
- [P2431: Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1](https://crewchief.cc/wiki/obd2-codes/P2431): Moderate — Address Soon. DIY $50–$250, Professional $250–$700.
- [P2432: Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1](https://crewchief.cc/wiki/obd2-codes/P2432): Moderate — Address Soon. DIY $50–$250, Professional $250–$700.
- [P2440: Secondary Air Injection System Switching Valve Stuck Open Bank 1](https://crewchief.cc/wiki/obd2-codes/P2440): Moderate — Address Soon. DIY $80–$350, Professional $300–$800.
- [P2441: Secondary Air Injection System Switching Valve Stuck Closed Bank 1](https://crewchief.cc/wiki/obd2-codes/P2441): Moderate — Address Soon. DIY $80–$350, Professional $300–$800.
- [P2442: Secondary Air Injection System Switching Valve Stuck Open Bank 2](https://crewchief.cc/wiki/obd2-codes/P2442): Moderate — Address Soon. DIY $80–$350, Professional $300–$800.
- [P2443: Secondary Air Injection System Switching Valve Stuck Closed Bank 2](https://crewchief.cc/wiki/obd2-codes/P2443): Moderate — Address Soon. DIY $80–$350, Professional $300–$800.
- [P2444: Secondary Air Injection System Pump Stuck On Bank 1](https://crewchief.cc/wiki/obd2-codes/P2444): Moderate — Address Soon. DIY $20–$200, Professional $150–$600.
- [P2445: Secondary Air Injection System Pump Stuck Off Bank 1](https://crewchief.cc/wiki/obd2-codes/P2445): Moderate — Address Soon. DIY $10–$300, Professional $200–$700.
- [P2446: Secondary Air Injection System Pump Stuck On Bank 2](https://crewchief.cc/wiki/obd2-codes/P2446): Moderate — Address Soon. DIY $20–$200, Professional $150–$600.
- [P2447: Secondary Air Injection System Pump Stuck Off Bank 2](https://crewchief.cc/wiki/obd2-codes/P2447): Moderate — Address Soon. DIY $10–$300, Professional $200–$700.
- [P2463: DPF Soot Accumulation](https://crewchief.cc/wiki/obd2-codes/P2463): Moderate — Address Soon. DIY $0–$150, Professional $150–$3500.
- [P2647: VTEC Oil Pressure Switch Circuit High (Rocker Arm)](https://crewchief.cc/wiki/obd2-codes/P2647): Limit Driving. DIY $15–$60, Professional $80–$250.
- [P2715: Pressure Control Solenoid D Electrical](https://crewchief.cc/wiki/obd2-codes/P2715): Limit Driving. DIY $40–$120, Professional $150–$450.
- [P2723: Pressure Control Solenoid E Stuck Off](https://crewchief.cc/wiki/obd2-codes/P2723): Limit Driving. DIY $40–$180, Professional $200–$750.
- [P2769: Torque Converter Clutch Circuit Low](https://crewchief.cc/wiki/obd2-codes/P2769): Limit Driving. DIY $30–$120, Professional $150–$600.
- [U0001: High Speed CAN Communication Bus](https://crewchief.cc/wiki/obd2-codes/U0001): High — Immediate Attention. DIY $20–$150, Professional $200–$1200.
- [U0002: High Speed CAN Communication Bus (Performance)](https://crewchief.cc/wiki/obd2-codes/U0002): Moderate — Address Soon. DIY $15–$100, Professional $150–$800.
- [U0003: High Speed CAN Communication Bus (+) Open](https://crewchief.cc/wiki/obd2-codes/U0003): High — Immediate Attention. DIY $15–$100, Professional $200–$900.
- [U0004: High Speed CAN Communication Bus (+) Low](https://crewchief.cc/wiki/obd2-codes/U0004): High — Immediate Attention. DIY $15–$120, Professional $200–$1000.
- [U0073: Control Module Communication Bus "A" Off](https://crewchief.cc/wiki/obd2-codes/U0073): High — Immediate Attention. DIY $20–$200, Professional $150–$1200.
- [U0100: Lost Communication With ECM/PCM](https://crewchief.cc/wiki/obd2-codes/U0100): Moderate to High — Address Soon. DIY $15–$800, Professional $100–$2500.
- [U0101: Lost Communication With TCM](https://crewchief.cc/wiki/obd2-codes/U0101): Moderate — Address Soon. DIY $10–$150, Professional $100–$1500.
- [U0102: Lost Communication with Transfer Case Control Module](https://crewchief.cc/wiki/obd2-codes/U0102): Moderate — Address Soon. DIY $10–$150, Professional $200–$900.
- [U0103: Lost Communication with Gear Shift Control Module "A"](https://crewchief.cc/wiki/obd2-codes/U0103): Moderate — Address Soon. DIY $10–$200, Professional $200–$600.
- [U0104: Lost Communication with Cruise Control Module](https://crewchief.cc/wiki/obd2-codes/U0104): Low — Monitor. DIY $5–$80, Professional $100–$500.
- [U0105: Lost Communication with Fuel Injector Control Module](https://crewchief.cc/wiki/obd2-codes/U0105): Moderate — Address Soon. DIY $20–$300, Professional $250–$900.
- [U0106: Lost Communication with Glow Plug Control Module](https://crewchief.cc/wiki/obd2-codes/U0106): Moderate — Address Soon. DIY $15–$200, Professional $200–$700.
- [U0107: Lost Communication with Throttle Actuator Control Module](https://crewchief.cc/wiki/obd2-codes/U0107): High — Immediate Attention. DIY $30–$350, Professional $250–$900.
- [U0108: Lost Communication with Alternative Fuel Control Module](https://crewchief.cc/wiki/obd2-codes/U0108): Moderate — Address Soon. DIY $15–$250, Professional $200–$800.
- [U0109: Lost Communication with Fuel Pump Control Module](https://crewchief.cc/wiki/obd2-codes/U0109): High — Immediate Attention. DIY $20–$250, Professional $200–$700.
- [U0110: Lost Communication with Drive Motor Control Module "A"](https://crewchief.cc/wiki/obd2-codes/U0110): Moderate — Address Soon. DIY $30–$200, Professional $300–$2000.
- [U0111: Lost Communication with Battery Energy Control Module "A"](https://crewchief.cc/wiki/obd2-codes/U0111): Moderate — Address Soon. DIY $30–$200, Professional $300–$1500.
- [U0114: Lost Communication With Transfer Case Control Module](https://crewchief.cc/wiki/obd2-codes/U0114): Moderate — Address Soon. DIY $15–$80, Professional $200–$900.
- [U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module](https://crewchief.cc/wiki/obd2-codes/U0121): Moderate — Address Soon. DIY $10–$60, Professional $150–$1200.
- [U0122: Lost Communication With Vehicle Dynamics Control Module](https://crewchief.cc/wiki/obd2-codes/U0122): Moderate — Address Soon. DIY $10–$50, Professional $150–$1100.
- [U0126: Lost Communication With Steering Angle Sensor Module](https://crewchief.cc/wiki/obd2-codes/U0126): Moderate — Address Soon. DIY $15–$80, Professional $150–$600.
- [U0131: Lost Communication With Power Steering Control Module](https://crewchief.cc/wiki/obd2-codes/U0131): Moderate — Address Soon. DIY $10–$50, Professional $200–$1000.
- [U0140: Lost Communication With Body Control Module](https://crewchief.cc/wiki/obd2-codes/U0140): Moderate — Address Soon. DIY $10–$60, Professional $300–$800.
- [U0141: Lost Communication With Body Control Module "A"](https://crewchief.cc/wiki/obd2-codes/U0141): Moderate — Address Soon. DIY $10–$60, Professional $250–$800.
- [U0151: Lost Communication With Restraints Control Module (SRS/Airbag)](https://crewchief.cc/wiki/obd2-codes/U0151): High — Immediate Attention. DIY $20–$80, Professional $200–$1000.
- [U0155: Lost Communication With Instrument Panel Cluster (IPC)](https://crewchief.cc/wiki/obd2-codes/U0155): Moderate — Address Soon. DIY $15–$450, Professional $100–$1200.
- [U0164: Lost Communication With HVAC Control Module](https://crewchief.cc/wiki/obd2-codes/U0164): Low — Monitor. DIY $10–$50, Professional $150–$600.
- [U0168: Lost Communication With Vehicle Security Control Module](https://crewchief.cc/wiki/obd2-codes/U0168): Moderate — Address Soon. DIY $10–$50, Professional $200–$800.
- [U0184: Lost Communication With Radio / Audio Control Module](https://crewchief.cc/wiki/obd2-codes/U0184): Low — Monitor. DIY $10–$60, Professional $150–$800.
- [U0199: Lost Communication With Door Control Module "A"](https://crewchief.cc/wiki/obd2-codes/U0199): Low — Monitor. DIY $10–$80, Professional $150–$500.
- [U0293: Lost Communication With Hybrid Powertrain Control Module](https://crewchief.cc/wiki/obd2-codes/U0293): High — Immediate Attention. DIY $20–$100, Professional $300–$2500.
- [U0300: Internal Control Module Software Incompatibility](https://crewchief.cc/wiki/obd2-codes/U0300): Moderate — Address Soon. DIY $0–$50, Professional $100–$500.
- [U1900: CAN Communication Bus Fault — Receive Error](https://crewchief.cc/wiki/obd2-codes/U1900): Moderate — Address Soon. DIY $10–$80, Professional $150–$800.

## Blog

- [Understanding OBD2 Trouble Codes](https://crewchief.cc/blog/understanding-obd2-codes): Explore the anatomy of OBD-II diagnostic trouble codes with our interactive decoder. Learn what each character means, the history of on-board diagnostics, and how to read the codes your car is throwing.
- [Decoding Your Vehicle Identification Number](https://crewchief.cc/blog/decoding-your-vin): Learn what each character of a 17-digit Vehicle Identification Number means with our interactive decoder. Hover over each position to explore.

## Full Content

- [Full OBD2 code reference (all codes, all data)](https://crewchief.cc/llms-full.txt): Complete markdown dump of every OBD2 code with all diagnostic details.