Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. With the scan tool, read Transmission Control Module (TCM) DTCs and record on the repair order.
2. Record the Event Data and Environmental Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read TCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Go To 3
CHECK TRANSMISSION CONTROL MODULE (TCM) WIRING HARNESS LEADFRAME
1. Using the schematics as a guide, check the TCM terminals for corrosion, damage or pushed out terminals.
2. Check Service Information Tune-ups or Service Bulletins for possible causes that may apply.
3. Remove the transmission oil pan and the TCM. Refer to REMOVAL
4. Inspect and clean the Speed Sensor terminals at the wiring harness leadframe for metallic contamination. Pay particular attention to power and ground circuits.
5. Reinstall the TCM. Refer to INSTALLATION
6. With the scan tool, erase TCM DTCs.
7. Road test the vehicle and check for DTCs.
  Did the DTC return?
  
  Yes
  - Remove the Transmission and perform the appropriate repair for this DTC in accordance with the Service Information. Refer to REMOVAL .
  - If no problems are found, replace the TCM in accordance with the Service Information. Refer to REMOVAL
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
CHECK WIRING AND CONNECTORS
1. The conditions necessary to set the DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle the wires while checking for shorted and open circuits.
4. Check for any Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Test complete.