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OBD2 Trouble Codes

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

P0148
Powertrain
Moderate

Fuel Delivery Error

P0150
Powertrain
Moderate

O2 Sensor Circuit Malfunction (Bank 2, Sensor 1)

P0151
Powertrain
Moderate

O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1)

P0152
Powertrain
Moderate

O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)

P0153
Powertrain
Moderate

O2 Sensor Circuit Slow Response (Bank 2, Sensor 1)

P0154
Powertrain
Moderate

O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 1)

P0155
Powertrain
Low

O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 1)

P0156
Powertrain
Low

O2 Sensor Circuit Malfunction (Bank 2, Sensor 2)

P0157
Powertrain
Low

O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)

P0158
Powertrain
Low

O2 Sensor Circuit High Voltage (Bank 2, Sensor 2)

P0159
Powertrain
Low

O2 Sensor Circuit Slow Response (Bank 2, Sensor 2)

P0160
Powertrain
Moderate

O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 2)

P0161
Powertrain
Low

O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2)

P0162
Powertrain
Low

O2 Sensor Circuit Malfunction (Bank 2, Sensor 3)

P0163
Powertrain
Low

O2 Sensor Circuit Low Voltage (Bank 2, Sensor 3)

P0164
Powertrain
Low

O2 Sensor Circuit High Voltage (Bank 2, Sensor 3)

P0165
Powertrain
Low

O2 Sensor Circuit Slow Response (Bank 2, Sensor 3)

P0166
Powertrain
Moderate

O2 Sensor Circuit No Activity Detected (Bank 2, Sensor 3)

P0167
Powertrain
Low

O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 3)

P0168
Powertrain
Moderate

Fuel Temperature Too High

P0169
Powertrain
Moderate

Incorrect Fuel Composition

P0170
Powertrain
Moderate

Fuel Trim Malfunction (Bank 1)

P0171
Powertrain
Moderate

System Too Lean (Bank 1)

P0172
Powertrain
Moderate

System Too Rich (Bank 1)

P0174
Powertrain
Moderate

System Too Lean (Bank 2)

P0175
Powertrain
Moderate

System Too Rich (Bank 2)

P0191
Powertrain
Moderate

Fuel Rail Pressure Sensor Circuit Range/Performance

P0200
Powertrain
Moderate

Injector Circuit Malfunction

P0201
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 1

P0202
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 2

P0203
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 3

P0204
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 4

P0205
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 5

P0206
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 6

P0207
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 7

P0208
Powertrain
Moderate

Injector Circuit Malfunction - Cylinder 8

P0217
Powertrain
High

Engine Over Temperature

P0218
Powertrain
High

Transmission Over Temperature Condition

P0219
Powertrain
Moderate

Engine Overspeed Condition

P0220
Powertrain
Moderate

Throttle/Pedal Position Sensor/Switch B Circuit

P0221
Powertrain
Moderate

Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance

P0222
Powertrain
Moderate

Throttle/Pedal Position Sensor/Switch B Circuit Low

P0223
Powertrain
High

Throttle/Pedal Position Sensor/Switch B Circuit High

P0230
Powertrain
Moderate

Fuel Pump Primary Circuit Malfunction

P0231
Powertrain
Moderate

Fuel Pump Secondary Circuit Low

P0234
Powertrain
Moderate

Turbocharger/Supercharger "A" Overboost Condition

P0243
Powertrain
Moderate

Turbocharger/Supercharger Wastegate Solenoid "A" Malfunction

P0244
Powertrain
Moderate

Turbocharger/Supercharger Wastegate Solenoid "A" Range/Performance

P0245
Powertrain
Moderate

Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Low

P0251
Powertrain
Moderate

Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)

P0261
Powertrain
Moderate

Cylinder 1 Injector Circuit Low

P0262
Powertrain
Moderate

Cylinder 1 Injector Circuit High

P0263
Powertrain
Moderate

Cylinder 1 Contribution/Balance

P0264
Powertrain
Moderate

Cylinder 2 Injector Circuit Low

P0265
Powertrain
Moderate

Cylinder 2 Injector Circuit High

P0266
Powertrain
Moderate

Cylinder 2 Contribution/Balance

P0267
Powertrain
Moderate

Cylinder 3 Injector Circuit Low

P0268
Powertrain
Moderate

Cylinder 3 Injector Circuit High

P0269
Powertrain
Moderate

Cylinder 3 Contribution/Balance

P0299
Powertrain
Moderate

Turbocharger/Supercharger Underboost

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