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Diagnostic Trouble Code Identification Gas

Diagnostic Trouble Code (DTC) Identification Diagnostic Types

DTC

Description

DTC Type*

Default Action

P0218

Transmission Fluid Overtemperature

D

The VCM freezes shift adapts.

P0502

Vehicle Speed Sensor Circuit -- Low Input

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM commands maximum line pressure
    • The VCM defaults a calculated OSS from the A/T ISS sensor output.

P0503

Vehicle Speed Sensor Circuit -- Intermittent

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM commands maximum line pressure.
    • The VCM defaults a calculated OSS from the A/T ISS sensor output.

P0560

System Voltage Malfunction

D
    • The VCM commands an immediate landing to second gear.
    • The VCM freezes shift adapts.
    • The VCM turns off all transmission output devices.

P0711

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

D
    • The VCM freezes shift adapts.
    • Default line pressure.
    • The VCM calculates a default transmission fluid temperature based on engine coolant temperature, intake air temperature and engine run time.

P0712

Transmission Fluid Temperature Sensor Circuit -- Low Input

D
    • The VCM freezes shift adapts.
    • Default line pressure.
    • The VCM calculates a default transmission fluid temperature based on engine coolant temperature, intake air temperature and engine run time.

P0713

Transmission Fluid Temperature Sensor Circuit -- High Input

D
    • The VCM freezes shift adapts.
    • Default line pressure.
    • The VCM calculates a default transmission fluid temperature based on engine coolant temperature, intake air temperature and engine run time.

P0716

Input Speed Sensor Circuit -- Intermittent

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM commands maximum line pressure.

P0717

Input Speed Sensor Circuit -- Low Input

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM commands maximum line pressure.

P0719

Brake Switch Circuit -- Low Input

D

--

P0724

Brake Switch Circuit -- High Input

D

--

P0730

Incorrect Gear Ratio

D
    • The VCM commands maximum line pressure.
    • The VCM freezes shift adapts.

P0741

Torque Converter Clutch System Stuck Off

D/B
    • The VCM illuminates the MIL for California emissions.
    • Default line pressure.
    • The VCM inhibits TCC engagement.
    • The VCM inhibits fourth gear engagement.

P0742

Torque Converter Clutch System Stuck On

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM commands maximum line pressure.
    • The VCM freezes shift adapts.

P0748

Pressure Control Circuit -- Electrical

D
    • The VCM disables the PC Solenoid valve.
    • The VCM freezes shift adapts.

P0751

1-2 Shift Solenoid Valve -- Performance

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM commands maximum line pressure.
    • The VCM freezes shift adapts.
    • 3-2 downshifts above 25 MPH are inhibited.

P0753

1-2 Shift Solenoid Valve Circuit -- Electrical

D/A
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • 3-2 downshifts above 25 MPH are inhibited.
    • The VCM commands maximum line pressure.

P0756

2-3 Shift Solenoid Valve -- Performance

D/A
    • The VCM illuminates the MIL for California emissions.
    • The VCM commands an immediate landing to second gear.
    • The VCM freezes shift adapts.
    • The VCM commands maximum line pressure.

P0758

2-3 Shift Solenoid Valve Circuit-- Electrical

D/A
    • The VCM illuminates the MIL for California emissions.
    • The VCM commands maximum line pressure.
    • The VCM freezes shift adapts.
    • The VCM commands an immediate landing to second gear.

P1810

Automatic Transmission Fluid Pressure Manual Valve Position Switch Circuit Malfunction

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM assumes D4 shift pattern.
    • The VCM commands maximum line pressure.
    • The VCM forces TCC apply when fourth gear is commanded.

P1860

Torque Converter Clutch Pulse Width Modulation Solenoid Valve Circuit-Electrical

D/A
    • The VCM illuminates the MIL for California emissions.
    • The VCM inhibit s TCC engagement.
    • The VCM inhibits fourth gear engagement.
    • The VCM freezes shift adapts.

P1870

Transmission Component Slipping

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM commands maximum line pressure.
    • The VCM inhibits TCC engagement.
    • The VCM inhibits fourth gear engagement.
    • The VCM freezes shift adapts.

P1875

Four-Wheel Drive Low Switch Circuit Electrical

D/B
    • The VCM illuminates the MIL for California emissions.
    • The VCM freezes shift adapts.
    • The VCM assumes a 4WD Lo state if the switch fails when open, or the VCM assumes a 4WD High state if the switch fails when closed, for a transmission shift pattern.
    • The VCM inhibits fourth gear engagement.
    • The VCM freezes shift adapts.

*DTC Types:

A--Emission related, will turn on the MIL after the first failure.

B--Emission related, will turn on the MIL after two consecutive trips with a failure.

C--Non-emission related, will turn on the service lamp after the first failure.

D--Non-emission related, no lamps.

Diagnostic Trouble Code Identification Diesel L65

Diagnostic Trouble Code (DTC) Identification (Diesel)

DTC

Description

DTC Type*

Default Action

P0218

Transmission Fluid Overtemperature

D

The PCM freezes shift adapts.

P0560

System Voltage High/Low

D
    • The PCM commands an immediate landing to second gear.
    • The PCM freezes shift adapts.
    • The PCM turns off all transmission output devices.

P0711

Transmission Fluid Temperature Sensor Circuit Range/Performance

D
    • The PCM freezes shift adapts.
    • The PCM uses a TFT default value of 140°C (284°F).

P0712

Transmission Fluid Temperature Sensor Circuit -- Low Input

D
    • The PCM freezes shift adapts.
    • The PCM uses a TFT default value of 140°C (284°F).

P0713

Transmission Fluid Temperature Sensor Circuit -- High Input

D
    • The PCM freezes shift adapts.
    • The PCM uses a TFT default value of 140°C (284°F).

P0716

Input Speed Sensor Circuit -- Range/Performance

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure

P0717

Input Speed Sensor Circuit -- No Signal

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0719

Brake Switch Circuit -- Low Input

D

--

P0722

Vehicle Speed Sensor Circuit - Low Input

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0723

Vehicle Speed Sensor Circuit - High Input

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0724

Brake Switch Circuit -- High Input

D

--

P0731

Incorrect First Gear Ratio

D
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0732

Incorrect Second Gear Ratio

D
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0733

Incorrect Third Gear Ratio

D
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0734

Incorrect Fourth Gear Ratio

D
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0741

Torque Converter Clutch - Stuck OFF

B
    • The PCM inhibits TCC engagement.
    • The PCM inhibits fourth gear engagement.

P0742

Torque Converter Clutch - Stuck ON

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0748

Pressure Control Solenoid Circuit -- Electrical

D
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0751

1-2 Shift Solenoid Valve -- Stuck-Off

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0752

1-2 Shift Solenoid Valve -- Stuck-On

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P0756

2-3 Shift Solenoid Valve -- Stuck-On

A
    • The PCM commands an immediate landing to second gear.
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.
    • The PCM applies TCC when necessary.

P0757

2-3 Shift Solenoid Valve -- Stuck-Off

A
    • The PCM commands an immediate landing to second gear.
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.
    • The PCM applies TCC when necessary.

P1810

Transmission Fluid Pressure Manual Valve Position Switch -- Illegal Range

B
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.
    • The PCM assumes a D4 shift pattern.

P1860

TCC PWM Solenoid Circuit -- Electrical

A
    • The PCM inhibits TCC engagement.
    • The PCM inhibits fourth gear engagement.
    • The PCM freezes shift adapts.

P1870

Transmission Component Slipping

B
    • The PCM inhibits TCC engagement.
    • The PCM inhibits fourth gear engagement.
    • The PCM freezes shift adapts.
    • The PCM commands maximum line pressure.

P1875

Four-Wheel Drive Low Switch Circuit -- Electrical

D
    • The PCM assumes a 4WD low state if the switch fails when open, or if the switch fails when closed, for a transmission shift pattern.
    • The PCM freezes shift adapts.

*DTC Types:

  • A - Emission related, will turn on the MIL after the first failure.
  • B - Emission related, will turn on the MIL after two consecutive trips with a failure.
  • C - Non-emission related, will turn on the service lamp after the first failure.
  • D - Non-emission related, no lamps.

For vehicles equal to or greater than 15,000 lbs GVW, all DTC types are D.