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OBD2 Trouble Codes

Browse 543 diagnostic trouble codes — each with symptoms, causes, cost estimates, and repair guidance.

P0457
Powertrain
Low

Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)

P0458
Powertrain
Low

Evaporative Emission System Purge Control Valve Circuit Low

P0459
Powertrain
Low

Evaporative Emission System Purge Control Valve Circuit High

P0460
Powertrain
Low

Fuel Level Sensor 'A' Circuit

P0461
Powertrain
Low

Fuel Level Sensor 'A' Circuit Range/Performance

P0462
Powertrain
Low

Fuel Level Sensor 'A' Circuit Low Input

P0463
Powertrain
Low

Fuel Level Sensor 'A' Circuit High Input

P0464
Powertrain
Low

Fuel Level Sensor 'A' Circuit Intermittent

P0480
Powertrain
Moderate

Cooling Fan 1 Control Circuit Malfunction

P0481
Powertrain
Moderate

Cooling Fan 2 Control Circuit Malfunction

P0491
Powertrain
Low

Secondary Air Injection System Insufficient Flow (Bank 1)

P0492
Powertrain
Low

Secondary Air Injection System Insufficient Flow (Bank 2)

P0500
Powertrain
Moderate

Vehicle Speed Sensor (VSS) Malfunction

P0501
Powertrain
Moderate

Vehicle Speed Sensor Range/Performance

P0502
Powertrain
Moderate

Vehicle Speed Sensor Circuit Low Input

P0503
Powertrain
Moderate

Vehicle Speed Sensor Intermittent/Erratic/High

P0504
Powertrain
Moderate

Brake Switch "A"/"B" Correlation

P0505
Powertrain
Moderate

Idle Air Control System Malfunction

P0506
Powertrain
Moderate

Idle Air Control System RPM Lower Than Expected

P0507
Powertrain
Moderate

Idle Air Control System RPM Higher Than Expected

P0508
Powertrain
Moderate

Idle Air Control System Circuit Low

P0509
Powertrain
Moderate

Idle Air Control System Circuit High

P0510
Powertrain
Moderate

Closed Throttle Position Switch Malfunction

P0520
Powertrain
Moderate

Engine Oil Pressure Sensor/Switch Circuit

P0521
Powertrain
Moderate

Engine Oil Pressure Sensor/Switch Range/Performance

P0522
Powertrain
Moderate

Engine Oil Pressure Sensor/Switch Low Voltage

P0523
Powertrain
Moderate

Engine Oil Pressure Sensor/Switch High Voltage

P0524
Powertrain
High

Engine Oil Pressure Too Low

P0530
Powertrain
Low

A/C Refrigerant Pressure Sensor Circuit Malfunction

P0532
Powertrain
Low

A/C Refrigerant Pressure Sensor Circuit Low Input

P0533
Powertrain
Low

A/C Refrigerant Pressure Sensor Circuit High Input

P0560
Powertrain
Moderate

System Voltage

P0562
Powertrain
Moderate

System Voltage Low

P0600
Powertrain
Moderate

Serial Communication Link Malfunction

P0601
Powertrain
Moderate

Internal Control Module Memory Check Sum Error

P0602
Powertrain
Moderate

Control Module Programming Error

P0603
Powertrain
Moderate

Internal Control Module Keep Alive Memory (KAM) Error

P0604
Powertrain
Moderate

Internal Control Module Random Access Memory (RAM) Error

P0605
Powertrain
Moderate

Internal Control Module Read Only Memory (ROM) Error

P0606
Powertrain
High

ECM/PCM Processor Fault

P0607
Powertrain
High

Control Module Performance

P0615
Powertrain
Moderate

Starter Relay Circuit

P0616
Powertrain
Moderate

Starter Relay Circuit Low

P0617
Powertrain
Moderate

Starter Relay Circuit High

P0620
Powertrain
Moderate

Generator Control Circuit Malfunction

P0625
Powertrain
Moderate

Generator Field/F Terminal Circuit Low

P0627
Powertrain
High

Fuel Pump A Control Circuit/Open

P0630
Powertrain
High

VIN Not Programmed or Incompatible — ECM/PCM

P0638
Powertrain
High

Throttle Actuator Control Range/Performance (Bank 1)

P0661
Powertrain
Moderate

Intake Manifold Tuning Valve Control Circuit Low

P0700
Powertrain
Moderate

Transmission Control System Malfunction

P0705
Powertrain
Moderate

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

P0706
Powertrain
Moderate

Transmission Range Sensor "A" Circuit Range/Performance

P0710
Powertrain
Moderate

Transmission Fluid Temperature Sensor "A" Circuit

P0711
Powertrain
Moderate

Transmission Fluid Temperature Sensor "A" Circuit Range/Performance

P0712
Powertrain
Moderate

Transmission Fluid Temperature Sensor "A" Circuit Low Input

P0713
Powertrain
Moderate

Transmission Fluid Temperature Sensor "A" Circuit High Input

P0714
Powertrain
Moderate

Transmission Fluid Temperature Sensor "A" Circuit Intermittent

P0715
Powertrain
Moderate

Input/Turbine Speed Sensor Circuit Malfunction

P0716
Powertrain
Moderate

Input/Turbine Speed Sensor "A" Circuit Range/Performance

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