6T70/6T75 - Automatic Transmission

DTC P0711, P0712, or P0713

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors
DTC P0711
- Transmission Fluid Temperature Sensor Performance

DTC P0712
- Transmission Fluid Temperature Sensor Circuit Low Voltage

DTC P0713
- Transmission Fluid Temperature Sensor Circuit High Voltage

Circuit/System Description

The transmission fluid temperature (TFT) sensor is located inside of the transmission control module (TCM) assembly which has no serviceable components. The TFT sensor provides transmission fluid temperature to the TCM. This fault is handled inside the TCM and no external circuits are involved.

Conditions for Running the DTC

P0711
* DTC P0101, P0102, P0103, P0106, P0107, P0108, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0401, P042E, P0658, P0668, P0669, P06AD, P06AE, P0711, P0712, P0713, P0716, P0717, P0722, P0723, P0962, P0963, P0966, P0967, P0970, P0971, P215C, P2720, P2721, P2729, or P2730 is not set.
* The engine speed is 400 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* Brake torque is not active.
* The engine torque signal is valid.
* The throttle position signal is valid.

P0712
* DTC P0712, P0716, P0717, P0722, or P0723 is not set.
* The engine speed is 400 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.

P0713
* DTC P0713, P0716, P0717, P0722, or P0723 is not set.
* The engine speed is 400 RPM or greater for 5 seconds.
* The ignition voltage is 8.6 volts or greater.

Conditions for Setting the DTC

P0711

The difference between the TFT and TCM temperature and the difference between the TFT and TCM power up temperature are both greater than 20-50°C (36-90°F). The temperature threshold is dependent on the average temperature of the TFT, TCM temperature, and TCM power up temperature. The conditions have to be met for 5 minutes within a 6 minute period.

P0712

The TFT is -74°C (-101°F) or lower for 1 minute.

P0713

The TFT is 174°C (345°F) or greater for 1 minute.

Action Taken When the DTC Sets

* DTCs P0711, P0712, and P0713 are Type B DTCs.
* The TCM defaults the TFT to the TCM Temperature.

Conditions for Clearing the DTC

DTCs P0711, P0712, and P0713 are Type B DTCs.

Diagnostic Aids

The TCM temperature sensor is located inside of the control solenoid valve assembly and its output should resemble that of the TFT sensor output.

Reference Information
Connector End View Reference

* Component Connector End Views Connector End Views By Name
* Inline Harness Connector End Views Connector End Views By Number

Description and Operation

Electronic Component Description Electronic Component Description for control solenoid valve assembly
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Engine idling at operating temperature, verify the scan tool Transmission Fluid Temperature parameter is between -74 and +174°C (-101 and +345°F).

• If not within the specified range, replace the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement 6T70/6T75 - Automatic Transmission.

2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature and the Transmission Fluid Temperature parameters with a scan tool. The TCM Temperature and Transmission Fluid Temperature parameters should be within 20°C (36°F) of each other.

• If greater than the specified range, replace the Q8 control solenoid valve assembly.

3. After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, refer to Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections.

Repair Instructions

Note:
* Perform the Reset Transmission Adapts 6T70/6T75 - Automatic Transmission following all transmission related repairs.
* Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection Control Solenoid Valve and Transmission Control Module Assembly Inspection.

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Control Module References for control solenoid valve assembly replacement, setup, and programming