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Makes 🢒 GMC_Truck 🢒 1997 🢒 Sonoma Pickup - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Diagnostic Trouble Code Identification

Diagnostic Trouble Code Identification 2.2L

Diagnostic Trouble Code (DTC) Identification Diagnostic Types (2.2L)

DTC

Description

DTC Type*

Default Action

P0218

Transmission Fluid Overtemperature

D
    • DTC P0218 is stored in PCM history
    • The PCM freezes shift adapts from being updated

P0502

Vehicle Speed Sensor Assembly (VSS Assy.) 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 Assembly (VSS Assy.) 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

P0560

System Voltage Malfunction

D
    • DTC P0560 stores in PCM history
    • All transmission output devices are off

P0711

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--Range/Performance

B
    • DTC P0711 is stored 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

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--Low Input (High Temperature Indicated)

D
    • DTC P0712 is stored 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

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--High Input (Low Temperature Indicated)

D
    • DTC P0713 is stored 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 is stored in PCM history
    • The PCM disregards the brake switch input for TCC scheduling

P0724

Brake Switch Circuit--High Input

D
    • DTC P0724 is stored in PCM history

P0740

Torque Converter Clutch Solenoid Valve (TCC Sol Valve) Circuit--Electrical

A
    • DTC P0740 is stored 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 (TCC) System Stuck ON

B
    • DTC P0742 is stored in PCM history
    • The PCM freezes shift adapts from being updated

P0748

Pressure Control Solenoid Valve (PC Sol. Valve) Circuit--Electrical

D
    • DTC P0748 is stored in PCM history
    • PCS is OFF
    • The PCM freezes shift adapts from being updated

P0751

1-2 Shift Solenoid Valve (1-2 SS Valve)--Performance

A
    • DTC P0751 is stored in PCM history
    • The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)
    • The PCM commands D2 line pressure
    • The PCM freezes shift adapts from being updated

P0753

1-2 Shift Solenoid Valve (1-2 SS Valve)--Electrical

A
    • DTC P0753 is stored in PCM history
    • The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph)
    • The PCM commands D2 line pressure
    • The PCM freezes shift adapts from being updated

P0756

2-3 Shift Solenoid Valve (2-3 SS Valve)--Performance

A
    • DTC P0756 is stored 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 Valve (2-3 SS Valve)--Electrical

A
    • DTC P0758 is stored 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 Valve Assembly (3-2 SS Valve Assy.) Circuit--Electrical

A
    • DTC P0785 is stored 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

Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Switch) Circuit Malfunction

B
    • DTC 1810 is stored 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 Valve (TCC PWM Sol. Valve) Circuit--Electrical

A
    • DTC P1860 is stored 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 is stored 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 4.3L

Diagnostic Trouble Code (DTC) Identification Diagnostic Types (4.3L)

DTC

Description

DTC Type*

Default Action

P0218

Transmission Fluid Overtemperature

D
    • DTC P0218 is stored in VCM history
    • The VCM freezes shift adapts from being updated

P0502

Vehicle Speed Sensor Assembly (VSS Assy.) Circuit--Low Input

B
    • DTC P0502 stores in VCM history
    • The VCM commands second gear only
    • The VCM commands maximum line pressure
    • The VCM freezes shift adapts from being updated
    • The VCM inhibits TCC engagement

P0560

System Voltage Malfunction

D
    • DTC P0560 stores in VCM history
    • All transmission output devices are off
    • The VCM freezes shift adapts from being updated

P0711

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--Range/Performance

B
    • DTC P0711 is stored in VCM history
    • The VCM uses a transmission fluid temperature default value of 135°C (275°F)
    • The VCM freezes shift adapts from being updated

P0712

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--Low Input (High Temperature Indicated)

B
    • DTC P0712 is stored in VCM history
    • The VCM uses a transmission fluid temperature default value of 135°C (275°F)
    • The VCM freezes shift adapts from being updated

P0713

Automatic Transmission Fluid Temperature (TFT) Sensor Circuit--High Input (Low Temperature Indicated)

B
    • DTC P0713 is stored in VCM history
    • The VCM uses a transmission fluid temperature default value of 135°C (275°F)
    • The VCM freezes shift adapts from being updated

P0719

Brake Switch Circuit--Low Input

B
    • DTC P0719 is stored in VCM history

P0724

Brake Switch Circuit--High Input

D
    • DTC P0724 is stored in VCM history

P0740

Torque Converter Clutch Solenoid Valve (TCC Sol Valve) Circuit--Electrical

A
    • DTC P0740 is stored in VCM history
    • The VCM inhibits TCC engagement
    • The VCM inhibits 4th gear if the transmission is in hot mode
    • The VCM freezes shift adapts from being updated

P0742

Torque Converter Clutch (TCC) System Stuck ON

B
    • DTC P0742 is stored in VCM history
    • The VCM freezes shift adapts from being updated

P0748

Pressure Control Solenoid Valve (PC Sol. Valve) Circuit--Electrical

D
    • DTC P0748 is stored in VCM history
    • PCS is OFF
    • The VCM freezes shift adapts from being updated

P0751

1-2 Shift Solenoid Valve (1-2 SS Valve)--Performance

A
    • DTC P0751 is stored in VCM history
    • The VCM commands D2 line pressure
    • The VCM freezes shift adapts from being updated

P0753

1-2 Shift Solenoid Valve (1-2 SS Valve)--Electrical

A
    • DTC P0753 is stored in VCM history
    • The VCM commands D2 line pressure
    • The VCM freezes shift adapts from being updated

P0756

2-3 Shift Solenoid Valve (2-3 SS Valve)--Performance

A
    • DTC P0756 is stored in VCM history
    • The VCM commands third gear only
    • The VCM commands maximum line pressure
    • The VCM inhibits TCC engagement
    • The VCM freezes shift adapts from being updated

P0758

2-3 Shift Solenoid Valve (2-3 SS Valve)--Electrical

A
    • DTC P0758 is stored in VCM history
    • The VCM commands 3rd gear only
    • The VCM commands maximum line pressure
    • The VCM inhibits TCC engagement
    • The VCM freezes shift adapts from being updated

P0785

3-2 Shift Solenoid Valve Assembly (3-2 SS Valve Assy.) Circuit--Electrical

A
    • DTC P0785 is stored in VCM history
    • The VCM commands a soft landing to 3rd gear
    • The VCM inhibits TCC engagement
    • The VCM commands maximum line pressure
    • The VCM inhibits 4th gear if the transmission is in hot mode
    • The VCM freezes shift adapts from being updated

P1810

Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Switch) Circuit Malfunction

B
    • DTC 1810 is stored in VCM history
    • The VCM commands D2 line pressure
    • The VCM commands a D4 shift pattern
    • The VCM freezes shift adapts from being updated

P1860

Torque Converter Clutch Pulse Width Modulation Solenoid Valve (TCC PWM Sol. Valve) Circuit--Electrical

A
    • DTC P1860 is stored in VCM history
    • The VCM inhibits TCC engagement
    • The VCM inhibits 4th gear if the transmission is in hot mode
    • The VCM freezes shift adapts from being updated

P1870

Transmission Component Slipping

B
    • DTC P1870 is stored in VCM history
    • The VCM inhibits TCC engagement
    • The VCM commands maximum line pressure
    • The VCM inhibits 4th gear if the transmission is in hot mode
    • The VCM freezes shift adapts from being updated

P1875

Four Wheel Drive Low Circuit Malfunction

A
    • DTC P1875 is stored in VCM history
    • The VCM commands a normal shift pattern (not a 4WD low shift pattern)

*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.