P0400 – P0699 OBD2 Fault Codes
P0400 – P0699
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
P0409
Exhaust Gas Recirculation Sensor A Circuit
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)
P0425
Catalyst Temperature Sensor (Bank 1)
P0426
Catalyst Temperature Sensor Range/Performance (Bank 1)
P0427
Catalyst Temperature Sensor Low Input (Bank 1)
P0428
Catalyst Temperature Sensor High Input (Bank 1)
P0429
Catalyst Heater Control Circuit (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)
P0435
Catalyst Temperature Sensor (Bank 2)
P0436
Catalyst Temperature Sensor Range/Performance (Bank 2)
P0437
Catalyst Temperature Sensor Low Input (Bank 2)
P0438
Catalyst Temperature Sensor High Input (Bank 2)
P0439
Catalyst Heater Control Circuit (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 Leak Detected (gross leak)
P0456
Evaporative Emission Control System Leak Detected (very small leak)
P0457
Evaporative Emission Control System Leak Detected (fuel cap loose/off)
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 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
P0489
Exhaust Gas Recirculation Control Circuit Low
P0490
Exhaust Gas Recirculation Control Circuit High
P0491
Secondary Air Injection System Insufficient Flow (Bank 1)
P0492
Secondary Air Injection System Insufficient Flow (Bank 2)
P0493
Fan Overspeed
P0494
Fan Speed Low
P0495
Fan Speed High
P0496
Evaporative Emission System High Purge Flow
P0497
Evaporative Emission System Low Purge Flow
P0498
Evaporative Emission System Vent Valve Control Circuit Low
P0499
Evaporative Emission System Vent Valve Control Circuit High
P0500
Vehicle Speed Sensor Malfunction
P0501
Vehicle Speed Sensor Range/Performance
P0502
Vehicle Speed Sensor Low Input
P0503
Vehicle Speed Sensor Intermittent/Erratic/High
P0504
Brake Switch 'A'/'B' Correlation
P0505
Idle Control System Malfunction
P0506
Idle Control System RPM Lower Than Expected
P0507
Idle Control System RPM Higher Than Expected
P0508
Idle Air Control System Circuit Low
P0509
Idle Air Control System Circuit High
P0510
Closed Throttle Position Switch Malfunction
P0511
Idle Air Control Circuit
P0512
Starter Request Circuit
P0513
Incorrect Immobilizer Key
P0514
Battery Temperature Sensor Circuit Range/Performance
P0515
Battery Temperature Sensor Circuit
P0516
Battery Temperature Sensor Circuit Low
P0517
Battery Temperature Sensor Circuit High
P0518
Idle Air Control Circuit Intermittent
P0519
Idle Air Control System Performance
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
P0524
Engine Oil Pressure Too Low
P0525
Cruise Control Servo Control Circuit Range/Performance
P0526
Fan Speed Sensor Circuit
P0527
Fan Speed Sensor Circuit Range/Performance
P0528
Fan Speed Sensor Circuit No Signal
P0529
Fan Speed Sensor Circuit Intermittent
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
P0535
A/C Evaporator Temperature Sensor Circuit
P0536
A/C Evaporator Temperature Sensor Circuit Range/Performance
P0537
A/C Evaporator Temperature Sensor Circuit Low
P0538
A/C Evaporator Temperature Sensor Circuit High
P0539
A/C Evaporator Temperature Sensor Circuit Intermittent
P0540
Intake Air Heater 'A' Circuit
P0541
Intake Air Heater 'A' Circuit Low
P0542
Intake Air Heater 'A' Circuit High
P0543
Intake Air Heater 'A' Circuit Open
P0544
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 1)
P0545
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)
P0546
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1)
P0547
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
P0548
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
P0549
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
P0550
Power Steering Pressure Sensor/Switch Circuit
P0551
Power Steering Pressure Sensor/Switch Circuit Range/Performance
P0552
Power Steering Pressure Sensor/Switch Circuit Low Input
P0553
Power Steering Pressure Sensor/Switch Circuit High Input
P0554
Power Steering Pressure Sensor/Switch Circuit Intermittent
P0555
Brake Booster Pressure Sensor Circuit
P0556
Brake Booster Pressure Sensor Circuit Range/Performance
P0557
Brake Booster Pressure Sensor Circuit Low Input
P0558
Brake Booster Pressure Sensor Circuit High Input
P0559
Brake Booster Pressure Sensor Circuit Intermittent
P0560
System Voltage Malfunction
P0561
System Voltage Unstable
P0562
System Voltage Low
P0563
System Voltage High
P0564
Cruise Control Multi-Function Input 'A' Circuit
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 Accelerate 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 System - Vehicle Speed Too High
P0575
Cruise Control Related Malfunction
P0576
Cruise Control Input Circuit Low
P0577
Cruise Control Input Circuit High
P0578
Cruise Control Multi-Function Input 'A' Circuit Stuck
P0579
Cruise Control Multi-Function Input 'A' Circuit Range/Performance
P0580
Cruise Control Multi-Function Input 'A' Circuit Low
P0581
Cruise Control Multi-Function Input 'A' Circuit High
P0582
Cruise Control Vacuum Control Circuit/Open
P0583
Cruise Control Vacuum Control Circuit Low
P0584
Cruise Control Vacuum Control Circuit High
P0585
Cruise Control Multi-Function Input 'A'/'B' Correlation
P0586
Cruise Control Vent Control Circuit/Open
P0587
Cruise Control Vent Control Circuit Low
P0588
Cruise Control Vent Control Circuit High
P0589
Cruise Control Multi-Function Input 'B' Circuit
P0590
Cruise Control Multi-Function Input 'B' Circuit Stuck
P0591
Cruise Control Multi-Function Input 'B' Circuit Range/Performance
P0592
Cruise Control Multi-Function Input 'B' Circuit Low
P0593
Cruise Control Multi-Function Input 'B' Circuit High
P0594
Cruise Control Servo Control Circuit/Open
P0595
Cruise Control Servo Control Circuit Low
P0596
Cruise Control Servo Control Circuit High
P0597
Thermostat Heater Control Circuit/Open
P0598
Thermostat Heater Control Circuit Low
P0599
Thermostat Heater Control Circuit High
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
P0610
Control Module Vehicle Options Error
P0611
Fuel Injector Control Module Performance
P0612
Fuel Injector Control Module Relay Control
P0613
TCM Processor
P0614
ECM/TCM Incompatible
P0615
Starter Relay Circuit
P0616
Starter Relay Circuit Low
P0617
Starter Relay Circuit High
P0618
Alternative Fuel Control Module KAM Error
P0619
Alternative Fuel Control Module RAM/ROM Error
P0620
Generator Control Circuit Malfunction
P0621
Generator Lamp/L Terminal Circuit Malfunction
P0622
Generator Field/F Terminal Circuit Malfunction
P0623
Generator Lamp Control Circuit
P0624
Fuel Cap Lamp Control Circuit
P0625
Generator Field/F Terminal Circuit Low
P0626
Generator Field/F Terminal Circuit High
P0627
Fuel Pump 'A' Control Circuit/Open
P0628
Fuel Pump 'A' Control Circuit Low
P0629
Fuel Pump 'A' Control Circuit High
P0630
VIN Not Programmed or Incompatible – ECM/PCM
P0631
VIN Not Programmed or Incompatible – TCM
P0632
Odometer Not Programmed – ECM/PCM
P0633
Immobilizer Key Not Programmed – ECM/PCM
P0634
PCM/ECM/TCM Internal Temperature Too High
P0635
Power Steering Control Circuit
P0636
Power Steering Control Circuit Low
P0637
Power Steering Control Circuit High
P0638
Throttle Actuator Control Range/Performance (Bank 1)
P0639
Throttle Actuator Control Range/Performance (Bank 2)
P0640
Intake Air Heater Control Circuit
P0641
Sensor Reference Voltage 'A' Circuit/Open
P0642
Sensor Reference Voltage 'A' Circuit Low
P0643
Sensor Reference Voltage 'A' Circuit High
P0644
Driver Display Serial Communication Circuit
P0645
A/C Clutch Relay Control Circuit
P0646
A/C Clutch Relay Control Circuit Low
P0647
A/C Clutch Relay Control Circuit High
P0648
Immobilizer Lamp Control Circuit
P0649
Speed Control Lamp Control Circuit
P0650
Malfunction Indicator Lamp (MIL) Control Circuit
P0651
Sensor Reference Voltage 'B' Circuit/Open
P0652
Sensor Reference Voltage 'B' Circuit Low
P0653
Sensor Reference Voltage 'B' Circuit High
P0654
Engine RPM Output Circuit
P0655
Engine Hot Lamp Output Control Circuit
P0656
Fuel Level Output Circuit
P0657
Actuator Supply Voltage 'A' Circuit/Open
P0658
Actuator Supply Voltage 'A' Circuit Low
P0659
Actuator Supply Voltage 'A' Circuit High
P0660
Intake Manifold Tuning Valve Control Circuit/Open (Bank 1)
P0661
Intake Manifold Tuning Valve Control Circuit Low (Bank 1)
P0662
Intake Manifold Tuning Valve Control Circuit High (Bank 1)
P0663
Intake Manifold Tuning Valve Control Circuit/Open (Bank 2)
P0664
Intake Manifold Tuning Valve Control Circuit Low (Bank 2)
P0665
Intake Manifold Tuning Valve Control Circuit High (Bank 2)
P0666
PCM/ECM/TCM Internal Temperature Sensor Circuit
P0667
PCM/ECM/TCM Internal Temperature Sensor Range/Performance
P0668
PCM/ECM/TCM Internal Temperature Sensor Circuit Low
P0669
PCM/ECM/TCM Internal Temperature Sensor Circuit High
P0670
Glow Plug Module Control Circuit
P0671
Cylinder 1 Glow Plug Circuit
P0672
Cylinder 2 Glow Plug Circuit
P0673
Cylinder 3 Glow Plug Circuit
P0674
Cylinder 4 Glow Plug Circuit
P0675
Cylinder 5 Glow Plug Circuit
P0676
Cylinder 6 Glow Plug Circuit
P0677
Cylinder 7 Glow Plug Circuit
P0678
Cylinder 8 Glow Plug Circuit
P0679
Cylinder 9 Glow Plug Circuit
P0680
Cylinder 10 Glow Plug Circuit
P0681
Cylinder 11 Glow Plug Circuit
P0682
Cylinder 12 Glow Plug Circuit
P0683
Glow Plug Control Module to PCM Communication Circuit
P0684
Glow Plug Control Module to PCM Communication Circuit Range/Performance
P0685
ECM/PCM Power Relay Control Circuit/Open
P0686
ECM/PCM Power Relay Control Circuit Low
P0687
ECM/PCM Power Relay Control Circuit High
P0688
ECM/PCM Power Relay Sense Circuit/Open
P0689
ECM/PCM Power Relay Sense Circuit Low
P0690
ECM/PCM Power Relay Sense Circuit High
P0691
Fan 1 Control Circuit Low
P0692
Fan 1 Control Circuit High
P0693
Fan 2 Control Circuit Low
P0694
Fan 2 Control Circuit High
P0695
Fan 3 Control Circuit Low
P0696
Fan 3 Control Circuit High
P0697
Sensor Reference Voltage 'C' Circuit/Open
P0698
Sensor Reference Voltage 'C' Circuit Low
P0699
Sensor Reference Voltage 'C' Circuit High
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