Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR RELATED DTCS
- With the scan tool, read DTCs.
Are there any other Transmission Temperature Sensor related DTCs present?
Yes
- Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure.
No
- Go to step 2
- With the scan tool, read DTCs.
- CHECK IF THE DTC IS ACTIVE
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR
- Turn the ignition off to the lock position.
- Remove the Starter Relay.CAUTION: Removal of the Starter Relay will prevent the vehicle from being started in gear.WARNING: The Starter Relay must be removed from the PDC. Failure to do so may result in possible serious or fatal injury.NOTE: Failure to remove the Starter Relay can cause a Transmission - No Response condition.
- Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit.
- 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 with the numbers listed on the Transmission Simulator.
Do the readings on the Transmission Simulator match the scan tool readings ± 0.2 volts?
Yes
- Replace Transmission Range Sensor (TRS) in accordance with the Service Information.
- Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - 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. Check for any Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn.
- Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - 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 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
No
- Test Complete.