| Code | What it means |
| P0500 | Vehicle Speed Sensor (VSS) Circuit |
| P0501 | Vehicle Speed Sensor Range/Performance |
| P0502 | Vehicle Speed Sensor (VSS) Circuit Low Input |
| P0503 | Vehicle Speed Sensor (VSS) Circuit Intermittent |
| P0505 | Idle Control System Malfunction |
| P0506 | Idle Speed Low |
| P0507 | Idle Speed High |
| P0510 | Closed Throttle Position Switch Malfunction |
| P0512 | Start Switch Circuit |
| 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 | Air Conditioning (A/C) Refrigerant Pressure SensorCircuit Low Voltage |
| P0533 | Air Conditioning (A/C) Refrigerant Pressure SensorCircuit High Voltage |
| P0534 | Air Conditioner Refrigerant Charge Loss |
| P0550 | Power Steering Pressure (PSP) Switch Circuit |
| 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 |
| 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 Circuit |
| P0573 | Cruise Control/Brake Switch A Circuit High |
| P0574 | Vehicle Speed Too High - Cruise Control Disabled |
| 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 |
| P0600 | Serial Communication Link Malfunction |
| P0601 | Control Module Read Only Memory (ROM) |
| P0602 | Control Module Not Programmed |
| P0603 | Control Module Long Term Memory Reset |
| P0604 | Control Module Random Access Memory (RAM) |
| P0605 | Control Module Programming Read Only Memory (ROM) |
| P0606 | Control Module Internal Performance |
| P0607 | ECU Malfunction |
| P0608 | "Control Module VSS Output ""A"" Malfunction" |
| P0609 | "Control Module VSS Output ""B"" Malfunction" |
| P0610 | Control Module Vehicle Options Incorrect |
| P0615 | Starter Relay Control Circuit |
| P0616 | Starter Relay Control Circuit Low Voltage |
| P0617 | Starter Relay Control Circuit High Voltage |
| P0620 | Generator Control Circuit Malfunction |
| P0621 | Generator L-Terminal Circuit |
| P0622 | Generator F-Terminal Circuit |
| P0625 | Generator F-Terminal Circuit Low Voltage |
| P0626 | Generator F-Terminal Circuit High Voltage |
| P0628 | Fuel Pump Relay Control Circuit Low Voltage |
| P0629 | Fuel Pump Relay Control Circuit High Voltage |
| P0638 | Throttle Actuator Control (TAC) Command Performance |
| P0645 | Air Conditioning (A/C) Clutch Relay Control Circuit |
| P0646 | Air Conditioning (A/C) Clutch Relay Control Circuit |
| P0647 | Air Conditioning (A/C) Clutch Relay Control Circuit |
| P0650 | Malfunction Indicator Lamp (MIL) Control Circuit |
| P0654 | Engine RPM Output Circuit Malfunction |
| P0655 | Engine Hot Lamp Output Control Circuit Malfucntion |
| P0656 | Fuel Level Output Circuit Malfunction |
| P0660 | Intake Manifold Tuning (IMT) Valve Solenoid ControlCircuit |
| P0661 | Intake Manifold Tuning (IMT) Valve Solenoid ControlCircuit Low Voltage |
| P0662 | Intake Manifold Tuning (IMT) Valve Solenoid ControlCircuit High Voltage |
| P0691 | Cooling Fan Relay Control Circuit Low Voltage |
| P0693 | Cooling Fan Relay Control Circuit Low Voltage |
| P0692 | Cooling Fan Relay Control Circuit High Voltage |
| P0694 | Cooling Fan Relay Control Circuit High Voltage |
| P0700 | Transmission Control System Malfunction |
| P0701 | Transmission Control System Range/Performance |
| P0702 | Transmission Control System Electrical |
| P0703 | Brake Switch Circuit Malfunction |
| P0704 | Clutch Switch Input Circuit Malfunction |
| P0705 | Trans Range Switch Circuit |
| P0706 | Trans Range Switch Performance |
| P0707 | Transmission Range Sensor Circuit Low Input |
| P0708 | Transmission Range Sensor Circuit High Input |
| P0709 | Transmission Range Sensor Circuit Intermittent |
| P0710 | Transmission Fluid Temperature Sensor Circuit Malfunction |
| P0711 | TFT Sensor Circuit Range/Performance |
| P0712 | Transmission Fluid Temperature (TFT) Sensor CircuitLow Input |
| P0713 | Transmission Fluid Temperature (TFT) Sensor CircuitHigh Input |
| P0714 | Transmission Fluid Temperature Sensor Circuit Intermittent |
| P0715 | Input/Turbine Speed Sensor Circuit Malfunction |
| P0716 | Input Speed Sensor Circuit Intermittent |
| P0717 | Input Speed Sensor Circuit Low Input |
| P0718 | Input/Turbine Speed Sensor Circuit Intermittent |
| P0719 | Brake Switch Circuit Low Input |
| P0720 | Output Speed Sensor Circuit Malfunction |
| P0721 | Output Speed Sensor Range/Performance |
| P0722 | Output Speed Sensor Circuit Low Input |
| P0723 | Output Speed Sensor Intermittent |
| P0724 | Brake Switch Circuit High Input |
| P0725 | Engine Speed Input Circuit |
| P0726 | Engine Speed Input Circuit Range/Performance |
| P0727 | Engine Speed Circuit No Signal |
| P0728 | Engine Speed Input Circuit Intermittent |
| P0730 | Incorrect Gear Ratio |
| P0731 | Incorrect 1st Gear Ratio |
| P0732 | Incorrect 2nd Gear Ratio |
| P0733 | Incorrect 3rd Gear Ratio |
| P0734 | Incorrect 4th Gear Ratio |
| P0735 | Gear 5 Incorrect ratio |
| P0736 | Reverse incorrect gear ratio |
| P0740 | TCC Enable Solenoid Circuit Electrical |
| P0741 | TCC System Stuck Off |
| P0742 | TCC System Stuck On |
| P0743 | TCC Enable Solenoid Circuit Electrical |
| P0744 | Torque Converter Clutch Circuit Intermittent |
| P0745 | Pressure Control Solenoid Malfunction |
| P0746 | Pressure Control Solenoid Performance or Stuck Off |
| P0747 | Pressure Control Solenoid Stuck On |
| P0748 | Pressure Control Solenoid Circuit Electrical |
| P0749 | Pressure Control Solenoid Intermittent |
| P0750 | Shift Solenoid A Malfunction |
| P0751 | 1-2 Shift Solenoid Valve Performance - No First orFourth Gear |
| P0752 | 1-2 Shift Solenoid Valve Performance - No Second orThird Gear |
| P0753 | 1-2 Shift Solenoid Circuit Electrical |
| P0754 | Shift Solenoid A Intermittent |
| P0755 | Shift Solenoid B Malfunction |
| P0756 | 2-3 Shift Solenoid Valve Performance - No First orSecond Gear |
| P0757 | 2-3 Shift Solenoid Valve Performance - No Third orFourth Gear |
| P0758 | 2-3 Shift Solenoid Circuit Electrical |
| P0759 | Shift Solenoid B Intermittent |
| P0760 | Shift Solenoid C Malfunction |
| P0761 | Shift Solenoid C Performance or Stuck Off |
| P0762 | Shift Solenoid C Stuck On |
| P0763 | Shift Solenoid C Electrical |
| P0764 | Shift Solenoid C Intermittent |
| P0765 | Shift Solenoid D Malfunction |
| P0766 | Shift Solenoid D Performance or Stuck Off |
| P0767 | Shift Solenoid D Stuck On |
| P0768 | Shift Solenoid D Electrical |
| P0769 | Shift Solenoid D Intermittent |
| P0770 | Shift Solenoid E Malfunction |
| P0771 | Shift Solenoid E Performance or Stuck Off |
| P0772 | Shift Solenoid E Stuck On |
| P0773 | Shift Solenoid E Electrical |
| P0774 | Shift Solenoid E Intermittent |
| P0780 | Shift Malfunction |
| P0781 | 1-2 Shift Malfunction |
| P0782 | 2-3 Shift Malfunction |
| P0783 | 3-4 Shift Malfunction |
| P0784 | 4-5 Shift Malfunction |
| P0785 | 3-2 Shift Solenoid Circuit Electrical |
| P0786 | Shift/Timing Solenoid Range/Performance |
| P0787 | Shift/Timing Solenoid Low |
| P0788 | Shift/Timing Solenoid High |
| P0789 | Shift/Timing Solenoid Intermittent |
| P0790 | Normal/Performance Switch Circuit Malfunction |
| P0801 | Reverse Inhibit Control Circuit Malfunction |
| P0803 | 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction |
| P0804 | 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction |
| P0850 | Park/Neutral Position (PNP) Switch Circuit |
| P0856 | Powertrain Indicated Traction Control Malfunction |