| Code | What it means |
| P1870 | Transmission Component Slipping |
| P1871 | Undefined Gear Ratio |
| P1873 | TCC Stator Temp. Switch Circuit Low |
| P1874 | TCC Stator Temp. Switch Circuit High |
| P1875 | 4WD Low Switch Circuit Electrical |
| P1884 | TCC Enable/Shift Light Circuit |
| P1886 | Shift Timing Solenoid |
| P1887 | TCC Release Switch Circuit |
| P1890 | ECM Data Input Circuit |
| P1890 | Throttle Position Signal Input |
| P1891 | Throttle Position Sensor PWM Signal Low |
| P1892 | Throttle Position Sensor PWM Signal High |
| P1893 | Engine Torque Signal Low Voltage |
| P1894 | Engine Torque Signal High Voltage |
| P1895 | TCM to ECM Torque Reduction Circuit |
| P2008 | Intake Manifold Runner Control (IMRC) Solenoid Control Circuit |
| P2009 | Intake Manifold Runner Control (IMRC) Solenoid Control Circuit Low Voltage |
| P2010 | Intake Manifold Runner Control (IMRC) Solenoid Control Circuit High Voltage |
| P2066 | Fuel Level Sensor 2 Performance |
| P2067 | Fuel Level Sensor 2 Circuit Low Voltage |
| P2068 | Fuel Level Sensor 2 Circuit High Voltage |
| P2096 | or P2098 Post Catalyst Fuel Trim System Low Limit |
| P2097 | or P2099 Post Catalyst Fuel Trim System High Limit |
| P2100 | Throttle Actuator Control (TAC) Motor Control Circuit |
| P2101 | Control Module Throttle Actuator Position Performance |
| P2105 | Throttle Actuator Control (TAC) System - Forced Engine Shutdown |
| P2107 | Throttle Actuator Control (TAC) Module Internal Circuit |
| P2119 | Throttle Closed Position Performance |
| P2122 | Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage |
| P2123 | Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage |
| P2127 | Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage |
| P2128 | Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage |
| P2135 | Throttle Position (TP) Sensor 1-2 Correlation |
| P2138 | Accelerator Pedal Position (APP) Sensor 1-2 Correlation |
| P2176 | Minimum Throttle Position Not Learned |
| P2500 | Generator L-Terminal Circuit Low Voltage |
| P2501 | Generator L-Terminal Circuit High Voltage |