2010 Cadillac CTS Sedan AWD V6-3.6L Page 1636
parameter with a scan tool. The Transmission Fluid Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the
Transmission Fluid Temperature parameter and the TCM Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the Transmission Fluid Temperature parameter does not increase by more than 2掳C (3.5掳F) or the Transmission Fluid Temperature
parameter is not within 10掳C (18掳F) of the TCM Temperature parameter, then replace the Q8 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 (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning/Service Fast Learn Adapts) following all transmission related repairs.
P0712
DTC P0712 or P0713
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0712
- Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage
DTC P0713
- Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The transmission fluid temperature (TFT) sensor is a variable resistor that measures the temperature of the transmission fluid. The engine control
module (ECM) supplies 5 volts to the TFT signal circuit and supplies a ground to the low reference circuit.
The following table illustrates the difference between temperature, resistance, and voltage:
Conditions for Running the DTC
P0712
* The engine speed is above 1,000 RPM for 7 seconds.
* This DTC runs continuously when the above condition is met.
P0713
* The engine speed is above 1,000 RPM for 7 seconds.
* This DTC runs continuously when the above condition is met.
