DTC Codes - P0400-P0499 - Auxiliary Emissions Controls § 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 Open
§ 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)
§ P0456 Evaporative Emissions System Small Leak Detected
§ P0457 Evaporative Emission Control System Leak Detected
§ P0458 Evaporative Emission System Purge Control Valve Circuit Low
§ P0459 Evaporative Emission System Purge Control Valve Circuit High
§ 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
DTC Codes - P0500-P0599 - Vehicle Speed Controls and Idle Control System
§ P0500 Vehicle Speed Sensor Malfunction
§ P0501 Vehicle Speed Sensor Range/Performance
§ P0502 Vehicle Speed Sensor Low Input
§ P0503 Vehicle Speed Sensor Intermittent/Erratic/High
§ P0505 Idle Control System Malfunction
§ P0506 Idle Control System RPM Lower Than Expected
§ P0507 Idle Control System RPM Higher Than Expected
§ P0510 Closed Throttle Position Switch Malfunction
§ P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction
§ P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance
§ P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage
§ P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage
§ P0530 A/C Refrigerant Pressure Sensor Circuit Malfunction
§ P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance
§ P0532 A/C Refrigerant Pressure Sensor Circuit Low Input
§ P0533 A/C Refrigerant Pressure Sensor Circuit High Input
§ P0534 Air Conditioner Refrigerant Charge Loss
§ P0550 Power Steering Pressure Sensor Circuit Malfunction
§ P0551 Power Steering Pressure Sensor Circuit Range/Performance
§ P0552 Power Steering Pressure Sensor Circuit Low Input
§ P0553 Power Steering Pressure Sensor Circuit High Input
§ P0554 Power Steering Pressure Sensor Circuit Intermittent
§ P0560 System Voltage Malfunction
§ P0561 System Voltage Unstable
§ P0562 System Voltage Low
§ P0563 System Voltage High
§ P0565 Cruise Control On Signal Malfunction
§ P0566 Cruise Control Off Signal Malfunction
§ P0567 Cruise Control Resume Signal Malfunction
§ P0568 Cruise Control Set Signal Malfunction
§ P0569 Cruise Control Coast Signal Malfunction
§ P0570 Cruise Control Accel Signal Malfunction
§ P0571 Cruise Control/Brake Switch A Circuit Malfunction
§ P0572 Cruise Control/Brake Switch A Circuit Low
§ P0573 Cruise Control/Brake Switch A Circuit High
§ P0574 Cruise Control Related Malfunction
§ P0575 Cruise Control Related Malfunction
§ P0576 Cruise Control Related Malfunction
§ P0576 Cruise Control Related Malfunction
§ P0578 Cruise Control Related Malfunction
§ P0579 Cruise Control Related Malfunction
§ P0580 Cruise Control Related Malfunction
DTC Codes - P0600-P0699 - Computer Output Circuit
§ P0600 Serial Communication Link Malfunction
§ P0601 Internal Control Module Memory Check Sum Error
§ P0602 Control Module Programming Error
§ P0603 Internal Control Module Keep Alive Memory (KAM) Error
§ P0604 Internal Control Module Random Access Memory (RAM) Error
§ P0605 Internal Control Module Read Only Memory (ROM) Error
§ P0606 PCM Processor Fault
§ P0607 Control Module Performance
§ P0608 Control Module VSS Output "A" Malfunction
§ P0609 Control Module VSS Output "B" Malfunction
§ P0620 Generator Control Circuit Malfunction
§ P0621 Generator Lamp "L" Control Circuit Malfunction
§ P0622 Generator Field "F" Control Circuit Malfunction
§ P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction
§ P0654 Engine RPM Output Circuit Malfunction
§ P0655 Engine Hot Lamp Output Control Circuit Malfunction
§ P0656 Fuel Level Output Circuit Malfunction
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