For 1990-2009 cars

## Diagnostic Trouble Code Identification 5.7L

#### Diagnostic Trouble Code (DTC) Identification Diagnostic Types (5.7L, VIN G)

DTC | Description | DTC Type* | Default Action
--- | --- | --- | ---
P0218 | Transmission Fluid Overtemperature | D |

• | DTC P0218 stores in PCM history

• | The PCM freezes shift adapts from being updated

P0502 | Vehicle Speed Sensor Circuit--Low Input | B |

• | DTC P0502 stores in PCM history

• | The PCM commands second gear only

• | The PCM commands maximum line pressure

• | The PCM freezes shift adapts from being updated

• | The PCM inhibits TCC engagement

P0503 | Vehicle Speed Sensor Circuit--Intermittent | B |

• | DTC P0503 stores in PCM history

• | The PCM commands a soft landing to second gear

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P0711 | Transmission Fluid Temperature Sensor Circuit--Range/Performance | D |

• | DTC P0711 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0712 | Transmission Fluid Temperature Sensor Circuit--Low Input | D |

• | DTC P0712 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0713 | Transmission Fluid Temperature Sensor Circuit--High Input | D |

• | DTC P0713 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0719 | Brake Switch Circuit--Low Input | D |

• | DTC P0719 stores in PCM history

• | The PCM disregards the brake switch input for TCC scheduling

P0724 | Brake Switch Circuit--High Input | D | DTC P0724 stores in PCM history
P0740 | Torque Converter Clutch Enable Solenoid Circuit--Electrical | A |

• | DTC P0740 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P0742 | Torque Converter Clutch System Stuck--ON | B |

• | DTC P0742 stores in PCM history

• | The PCM freezes shift adapts from being updated

P0748 | Pressure Control Solenoid Circuit--Electrical | D |

• | DTC P0748 stores in PCM history

• | The PC Sol. valve is OFF

• | The PCM freezes shift adapts from being updated

P0751 | 1-2 Shift Solenoid Valve--Performance | A |

• | DTC P0751 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)

• | The PCM freezes shift adapts from being updated

P0753 | 1-2 Shift Solenoid Circuit--Electrical | A |

• | DTC P0753 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)

• | The PCM freezes shift adapts from being updated

P0756 | 2-3 Shift Solenoid Valve--Performance | A |

• | DTC P0756 stores in PCM history

• | The PCM commands third gear only

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM freezes shift adapts from being updated

P0758 | 2-3 Shift Solenoid Circuit--Electrical | A |

• | DTC P0758 stores in PCM history

• | The PCM commands 3rd gear only

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM freezes shift adapts from being updated

P0785 | 3-2 Shift Solenoid Circuit--Electrical | A |

• | DTC P0785 stores in PCM history

• | The PCM commands a soft landing to 3rd gear

• | The PCM inhibits TCC engagement

• | The PCM commands maximum line pressure

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P1810 | Transmission Fluid Pressure Manual Valve Position Switch Assembly Circuit Malfunction | B |

• | DTC 1810 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM commands a D4 shift pattern

• | The PCM freezes shift adapts from being updated

P1860 | Torque Converter Clutch Pulse Width Modulation Solenoid Circuit--Electrical | A |

• | DTC P1860 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P1870 | Transmission Component Slipping | B |

• | DTC P1870 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM commands maximum line pressure

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

*DTC Types:

- A-Emission-related, turns the MIL ON after the first failure.
- B-Emission-related, turns the MIL ON after two consecutive trips with failure.
- C-Non-emission-related, turns the service lamp ON after the first failure.
- D-Non-emission-related, no lamps.

## Diagnostic Trouble Code Identification 3.8L

#### Diagnostic Trouble Code (DTC) Identification (3.8L, VIN K)

DTC | Description | DTC Type* | Default Action
--- | --- | --- | ---
P0218 | Transmission Fluid Overtemperature | D |

• | DTC P0218 stores in PCM history

• | The PCM freezes shift adapts from being updated

P0502 | Vehicle Speed Sensor Circuit--Low Input | B |

• | DTC P0502 stores in PCM history

• | The PCM commands second gear only

• | The PCM commands maximum line pressure

• | The PCM freezes shift adapts from being updated

• | The PCM inhibits TCC engagement

P0503 | Vehicle Speed Sensor Circuit--Intermittent | B |

• | DTC P0503 stores in PCM history

• | The PCM commands a soft landing to second gear below 2500 RPM

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P0711 | Transmission Fluid Temperature Sensor Circuit--Range/Performance | D |

• | DTC P0711 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0712 | Transmission Fluid Temperature Sensor Circuit--Low Input | D |

• | DTC P0712 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0713 | Transmission Fluid Temperature Sensor Circuit--High Input | D |

• | DTC P0713 stores in PCM history

• | The PCM uses a transmission fluid temperature default value based on engine coolant, engine run time and IAT at startup

• | The PCM freezes shift adapts from being updated

P0719 | Brake Switch Circuit--Low Input | D |

• | DTC P0719 stores in PCM history

• | The PCM disregards the brake switch input for TCC scheduling

P0724 | Brake Switch Circuit--High Input | D | DTC P0724 stores in PCM history
P0740 | Torque Converter Clutch Enable Solenoid Circuit--Electrical | A |

• | DTC P0740 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P0742 | Torque Converter Clutch System--Stuck ON | B |

• | DTC P0742 stores in PCM history

• | The PCM freezes shift adapts from being updated

P0748 | Pressure Control Solenoid Circuit--Electrical | D |

• | DTC P0748 stores in PCM history

• | The PC Sol. Valve is OFF

• | The PCM freezes shift adapts from being updated

P0751 | 1-2 Shift Solenoid Valve--Performance | A |

• | DTC P0751 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)

• | The PCM freezes shift adapts from being updated

P0753 | 1-2 Shift Solenoid Circuit--Electrical | A |

• | DTC P0753 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)

• | The PCM freezes shift adapts from being updated

P0756 | 2-3 Shift Solenoid Valve--Performance | A |

• | DTC P0756 stores in PCM history

• | The PCM commands third gear only

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM freezes shift adapts from being updated

P0758 | 2-3 Shift Solenoid Circuit--Electrical | A |

• | DTC P0758 stores in PCM history

• | The PCM commands 3rd gear only

• | The PCM commands maximum line pressure

• | The PCM inhibits TCC engagement

• | The PCM freezes shift adapts from being updated

P0785 | 3-2 Shift Solenoid Circuit--Electrical | A |

• | DTC P0785 stores in PCM history

• | The PCM commands a soft landing to 3rd gear

• | The PCM inhibits TCC engagement

• | The PCM commands maximum line pressure

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P1810 | Transmission Fluid Pressure Manual Valve Position Switch Assembly Circuit Malfunction | B |

• | DTC 1810 stores in PCM history

• | The PCM commands D2 line pressure

• | The PCM commands a D4 shift pattern

• | The PCM freezes shift adapts from being updated

P1860 | Torque Converter Clutch Pulse Width Modulation Solenoid Circuit--Electrical | A |

• | DTC P1860 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

P1870 | Transmission Component Slipping | B |

• | DTC P1870 stores in PCM history

• | The PCM inhibits TCC engagement

• | The PCM commands maximum line pressure

• | The PCM inhibits 4th gear if the transmission is in hot mode

• | The PCM freezes shift adapts from being updated

*DTC Types:

- A-Emission-related, turns the MIL ON after the first failure.
- B-Emission-related, turns the MIL ON after two consecutive trips with failure.
- C-Non-emission-related, turns the service lamp ON after the first failure.
- D-Non-emission-related, no lamps.