Home OBD II Fault Codes OBDII Codes P0400 to P0492

OBDII Codes P0400 to P0492

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 l)

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 Malfunction

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 Tank 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 1 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

P0486

Exhaust Gas Recirculation Sensor "B" Circuit

P0487

Exhaust Gas Recirculation Throttle Position Control Circuit

P0488

Exhaust Gas Recirculation Throttle Position Control Range/Performance

P0491

Secondary Air Injection System (Bank 1)

P0492

Secondary Air Injection System (Bank 2)