6T30/6T40/6T45 - 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 (TFT) Sensor Performance
DTC P0712
- Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage
DTC P0713
- Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The transmission fluid temperature (TFT) sensor is located inside of the transmission control solenoid valve assembly which has no serviceable components. The TFT sensor provides transmission fluid temperature to the transmission control module (TCM). This fault is handled inside the TCM and no external circuits are involved.
Conditions for Running the DTC
P0711
* No DTCs 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, P0717, P0722, P0723, P0962, P0963, P0966, P0967, P0970, P0971, P215C, P2720, P2721, P2729, or P2730.
* The engine speed is greater than 500 RPM for 5 seconds.
* The ignition voltage is greater than 9.0 volts.
* Throttle position signal is valid.
* The engine torque signal is valid.
P0712
* The engine speed is greater than 500 RPM for 5 seconds.
* The ignition voltage is greater than 9.0 volts.
* DTC P0712 has not set this ignition cycle.
* No DTCs P0716, P0717, P0722, or P0723.
P0713
* The engine speed is greater than 500 RPM for 5 seconds.
* The ignition voltage is greater than 9.0 volts.
* DTC P0713 has not set this ignition cycle.
* No DTCs P0716, P0717, P0722, or P0723.
Conditions for Setting the DTC
P0711
The difference between the transmission fluid temperature (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.
P0712
The TFT is greater than 254°C (489°F) for 1 minute.
P0713
The TFT is less than -254°C (-425°F) for 1 minute.
Action Taken When the DTC Sets
* DTCs P0711, P0712, and P0713 are Type B DTCs.
* The TCM defaults to a calculated TFT based on the TCM temperature.
Conditions for Clearing the DTC
DTCs P0711, P0712, and P0713 are Type B DTCs.
Diagnostics Aids
The TCM temperature sensor is located inside of the control solenoid valve assembly and its output should resemble that of the TFT sensor's output.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics (6T30/6T40/6T45 - Automatic Transmission)
Connector End View Reference
* Component Connector End Views (Connector End Views By Name)
* Inline Harness Connector End Views (Connector End Views By Number)
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)
Description and Operation
* Electronic Component Description (Electronic Component Description) for control solenoid valve assembly
* Transmission General Description (Transmission General Description)
* Transmission Component and System Description (Transmission Component and System Description)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Powertrain Diagnostic Trouble Code (DTC) Type Definitions)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
1. Engine idling at operating temperature, verify the scan tool Trans Fluid Temp. parameter is between -254 and +254°C (-425 and +489°F).
• If not within the specified range, replace the control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement (Service and Repair).
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the Transmission Fluid Temperature parameter and the TCM Temperature parameter with a scan tool. The Transmission Fluid Temperature parameter should increase by greater than 2°C (3.5°F). Also, the Transmission Fluid Temperature parameter and the TCM Temperature parameter should be within 20°C (36°F) of each other.
• If the Transmission Fluid Temperature parameter does not increase by greater than 2°C (3.5°F) or the Transmission Fluid Temperature parameter is not within 20°C (36°F) of the TCM Temperature parameter, then replace the control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
Note: Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (Control Solenoid Valve and Transmission Control Module Assembly Inspection).
* Refer to Control Module References (Programming and Relearning) for control solenoid valve assembly replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (6T30/6T40/6T45 - Automatic Transmission) following all transmission related repairs.