Generic OBD-II Diagnostic Powertrain (P) Trouble Codes
This list contains standard diagnostic trouble codes (DTC’s) that are used by some manufacturers to identify vehicle problems. The codes provide below are generic codes that may not apply to all vehicles. Vehicle manufacturers may use manufacturer specific DTC codes that are different from the codes shown below.
The list below is for information purposes only.
| Code | Description |
P0400 |
Exhaust Gas Recirculation Flow Malfunction |
P0401 |
Exhaust Gas Recirculation Flow Insufficient Detected |
P0402 |
Exhaust Gas Recirculation Flow Excessive Detected |
P0403 |
Exhaust Gas Recirculation Circuit Malfunction |
P0404 |
Exhaust Gas Recirculation Circuit Range/Performance |
P0405 |
Exhaust Gas Recirculation Sensor A Circuit Low |
P0406 |
Exhaust Gas Recirculation Sensor A Circuit High |
P0407 |
Exhaust Gas Recirculation Sensor B Circuit Low |
P0408 |
Exhaust Gas Recirculation Sensor B Circuit High |
P0410 |
Secondary Air Injection System Malfunction |
P0411 |
Secondary Air Injection System Incorrect Flow Detected |
P0412 |
Secondary Air Injection System Switching Valve A Circuit Malfunction |
P0413 |
Secondary Air Injection System Switching Valve A Circuit Open |
P0414 |
Secondary Air Injection System Switching Valve A Circuit Shorted |
P0415 |
Secondary Air Injection System Switching Valve B Circuit Malfunction |
P0416 |
Secondary Air Injection System Switching Valve B Circuit Open |
P0417 |
Secondary Air Injection System Switching Valve B Circuit Shorted |
P0418 |
Secondary Air Injection System Relay ‘A" Circuit Malfunction |
P0419 |
Secondary Air Injection System Relay "B’ Circuit Malfunction |
P0420 |
Catalyst System Efficiency Below Threshold (Bank 1) |
P0421 |
Warm Up Catalyst Efficiency Below Threshold (Bank 1) |
P0422 |
Main Catalyst Efficiency Below Threshold (Bank 1) |
P0423 |
Heated Catalyst Efficiency Below Threshold (Bank 1) |
P0424 |
Heated Catalyst Temperature Below Threshold (Bank 1) |
P0430 |
Catalyst System Efficiency Below Threshold (Bank 2) |
P0431 |
Warm Up Catalyst Efficiency Below Threshold (Bank 2) |
P0432 |
Main Catalyst Efficiency Below Threshold (Bank 2) |
P0433 |
Heated Catalyst Efficiency Below Threshold (Bank 2) |
P0434 |
Heated Catalyst Temperature Below Threshold (Bank 2) |
P0440 |
Evaporative Emission Control System Malfunction |
P0441 |
Evaporative Emission Control System Incorrect Purge Flow |
P0442 |
Evaporative Emission Control System Leak Detected (small leak) |
P0443 |
Evaporative Emission Control System Purge Control Valve Circuit |
P0444 |
Evaporative Emission Control System Purge Control Valve Circuit |
P0445 |
Evaporative Emission Control System Purge Control Valve Circuit Shorted |
P0446 |
Evaporative Emission Control System Vent Control Circuit Malfunction |
P0447 |
Evaporative Emission Control System Vent Control Circuit Open |
P0448 |
Evaporative Emission Control System Vent Control Circuit Shorted |
P0449 |
Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction |
P0450 |
Evaporative Emission Control System Pressure Sensor Malfunction |
P0451 |
Evaporative Emission Control System Pressure Sensor Range/Performance |
P0452 |
Evaporative Emission Control System Pressure Sensor Low Input |
P0453 |
Evaporative Emission Control System Pressure Sensor High Input |
P0454 |
Evaporative Emission Control System Pressure Sensor Intermittent |
P0455 |
Evaporative Emission Control System Leak Detected (gross leak) |
P0460 |
Fuel Level Sensor Circuit Malfunction |
P0461 |
Fuel Level Sensor Circuit Range/Performance |
P0462 |
Fuel Level Sensor Circuit Low Input |
P0463 |
Fuel Level Sensor Circuit High Input |
P0464 |
Fuel Level Sensor Circuit Intermittent |
P0465 |
Purge Flow Sensor Circuit Malfunction |
P0466 |
Purge Flow Sensor Circuit Range/Performance |
P0467 |
Purge Flow Sensor Circuit Low Input |
P0468 |
Purge Flow Sensor Circuit High Input |
P0469 |
Purge Flow Sensor Circuit Intermittent |
P0470 |
Exhaust Pressure Sensor Malfunction |
P0471 |
Exhaust Pressure Sensor Range/Performance |
P0472 |
Exhaust Pressure Sensor Low |
P0473 |
Exhaust Pressure Sensor High |
P0474 |
Exhaust Pressure Sensor Intermittent |
P0475 |
Exhaust Pressure Control Valve Malfunction |
P0476 |
Exhaust Pressure Control Valve Range/Performance |
P0477 |
Exhaust Pressure Control Valve Low |
P0478 |
Exhaust Pressure Control Valve High |
P0479 |
Exhaust Pressure Control Valve Intermittent |
P0480 |
Cooling Fan I Control Circuit Malfunction |
P0481 |
Cooling Fan 2 Control Circuit Malfunction |
P0482 |
Cooling Fan 3 Control Circuit Malfunction |
P0483 |
Cooling Fan Rationality Check Malfunction |
P0484 |
Cooling Fan Circuit Over Current |
P0485 |
Cooling Fan Power/Ground Circuit Malfunction |