Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- DETERMINE IF RELATED DTCS ARE PRESENT
- With the scan tool, check DTCs.
Are there any other related Transmission Temperature Sensor DTCs present?
Yes
- See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Diagnosis and Testing and perform the appropriate diagnostic procedure.
No
- Go to step 2
- With the scan tool, check DTCs.
- CHECK IF DTC IS CURRENT
- TRANSMISSION TEMPERATURE SENSOR
- Turn the ignition off to the lock position.
- Remove the Ignition Switch Feed fuse from the TIPM.CAUTION: Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being started in gear.WARNING: The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury.
- Install the Transmission Simulator 8333.
- Ignition on, engine not running.
- With the Transmission Simulator, turn the Input/Output switch to OFF.
- With the scan tool, monitor the TRANS TEMP VOLTS while turning the Thermistor Voltage switch to all three positions on the Transmission Simulator.
- Compare the scan tool readings to the voltage readings listed on the Transmission Simulator.
Do the readings on the scan tool match the Transmission Simulator readings ± 0.2 of a volt?
Yes
- Replace Transmission Solenoid/TRS Assembly in accordance with the Service Information.
- Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn.
- Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
- CHECK THE WIRING AND CONNECTORS
- The conditions necessary to set this DTC are not present at this time.
- Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
- Wiggle the wires while checking for shorted and open circuits.
- With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Test Complete.