GM Service Manual Online
For 1990-2009 cars only

DTC

Description

DTC Type*

Default Action

P0218

Transmission Fluid Overtemperature

D

    • DTC P0218 will be stored in PCM history
    • Freeze shift adapts

P0502

Output Speed Sensor (A/T OSS) Circuit - Low Input

B

    • DTC P0502 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure
    • Output speed calculated from input speed, engine speed and commanded gear.

P0503

Output Speed Sensor (A/T OSS) Circuit - Intermittent

B

    • DTC P0503 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure
    • Output speed calculated from input speed, engine speed and commanded gear.

P0711

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

D

    • DTC P0711 will be stored in PCM history
    • Freeze shift adapts
    • Default trans. temperature calculated from engine coolant temp, manifold air temp and engine run time.

P0712

Transmission Fluid Temperature (TFT) Sensor Circuit - Low Input

D

    • DTC P0712 will be stored in PCM history
    • Freeze shift adapts
    • Default trans. temperature calculated from engine coolant temp, manifold air temp and engine run time.

P0713

Transmission Fluid Temperature (TFT) Sensor Circuit - High Input

D

    • DTC P0713 will be stored in PCM history
    • Freeze shift adapts
    • Default trans. temperature calculated from engine coolant temp, manifold air temp and engine run time.

P0716

Input Speed Sensor (A/T ISS) Circuit - Intermittent

B

    • DTC P0716 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure

P0717

Input Speed Sensor (A/T ISS) Circuit - No Signal

B

    • DTC P0717 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure

P0719

Brake Switch Circuit - Low Input

D

    • DTC P0719 will be stored in PCM history

P0724

Brake Switch Circuit - High Input

D

    • DTC P0724 will be stored in PCM history

P0730

Incorrect Gear Ratio

D

    • DTC P0730 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure

P0741

Torque Converter Clutch (TCC) System - Stuck Off

B

    • DTC P0741 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC

P0742

Torque Converter Clutch (TCC) System - Stuck On

A

    • DTC P0742 will be stored in PCM history
    • Freeze shift adapts
    • TCC will be commanded On in second, third and fourth gears.

P0748

Pressure Control Solenoid Circuit - Electrical

D

    • DTC P0748 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure

P0751

1-2 Shift Solenoid Valve - Performance

A

    • DTC P0751 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC
    • Maximum line pressure
    • Commands a soft landing to second gear

P0753

1-2 Shift Solenoid Circuit - Electrical

A

    • DTC P0753 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC
    • Maximum line pressure
    • Commands a soft landing to second gear

P0756

2-3 Shift Solenoid Valve - Performance

A

    • DTC P0756 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC
    • Maximum line pressure
    • Immediate landing to second gear

P0758

2-3 Shift Solenoid Circuit - Electrical

A

    • DTC P0758 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC
    • Maximum line pressure
    • Immediate landing to second gear

P1810

Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly - Circuit Malfunction

B

    • DTC 1810 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC
    • Assume D4 shift pattern
    • D2 braking pressure

P1811

Maximum Adapt and Long Shift

D

    • DTC P1811 will be stored in PCM history
    • Freeze shift adapts
    • Maximum line pressure

P1887

Torque Converter Clutch Release Switch Circuit - Malfunction

B

    • DTC P1887 will be stored in PCM history
    • Freeze shift adapts
    • Inhibit TCC

*DTC Types:

  1. A - Emission-related, turns the MIL ON after the first failure.
  2. B - Emission-related, turns the MIL ON after two consecutive trips with failure.
  3. D - Non-emission-related, no lamps.