2010 Cadillac CTS Sedan AWD V6-3.6L Page 1634
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 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
Circuit/System Description
The transmission fluid temperature (TFT) sensor is located inside of the transmission control module (TCM) assembly which has no serviceable
parts. 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
* DTCs P0101, P0102, P0103, P0116, P0117, P0118, P0121, P0122, P0123, P0336, P0337, P0338, P0711, P0716, P0722, P0723, P0742, or
P2726 are not set.
* Ignition voltage is 8.6 volts or greater.
* The engine coolant temperature (ECT) is valid.
* The TCM internal temperature is -50掳C to +170掳C (-56掳F and +336掳F) at start up.
* The engine speed is 500 RPM or greater for 5 seconds.
* The vehicle speed is 8 km/h (5 mph) or greater for 5 minutes.
* The engine coolant temperature is between -39掳C and 149掳C (-38掳F and 300掳F).
* The accelerator pedal position signal is valid.
* The engine torque signal is valid.
P0712 or P0713
* DTCs P0712, P0713, P0716, P0717, P0722, or P0723 are not set.
* Ignition voltage is 8.6 volts or greater.
* The engine speed is 500 RPM or greater for 5 seconds.
Conditions for Setting the DTC
P0711 Condition 1
* Vehicle speed is 8 km/h (5 mph) or greater for 5 minutes.
* TCC slip speed is 150 RPM or greater.
* The TFT is between -50掳C and +21掳C (-58掳F and +70掳F) at start up.
* The TFT has changed by less than 2.0掳C (3.6掳F) in 2 minutes.
* The ECT is 70掳C (158掳F) or greater.
* The ECT has increased by 55掳C (99掳F) since start-up.
Condition 2
* Vehicle speed is 8 km/h (5 mph) or greater for 5 minutes.
* TCC slip speed is 120 RPM or greater for 5 minutes.
* The TFT is between 129-170掳C (264-507掳F).
* The TFT has changed by less than 2.0掳C (3.6掳F) in 2 minutes.
* The ECT is 70掳C (158掳F) or greater.
* The ECT has increased by 55掳C (99掳F) since start-up.
Condition 3
The TFT changes by 20掳C (36掳F) or greater 5 times over 7 seconds.
