Diagnostic Test
- CHECK FOR RELATED DTCS
- Ignition on, engine not running.
- Using the scan tool, read DTCs.
Are any other BUS Communication DTCs present?
Yes
- Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing and perform the appropriate diagnostic procedure.
No
- Go to step 2
- CHECK IF THE DTC IS CURRENT
- ENGINE CONTROL MODULE or POWERTRAIN CONTROL MODULE
- Replace and program the Engine Control Module or Powertrain Control Module in accordance with the Service Information.
- With the scan tool, erase Transmission DTCs.
- Cycle the ignition switch off for 90 seconds and then back on to the run position.
- With the scan tool read DTCs.
Does the DTC reset?
Yes
- Using the schematics as a guide, check the Transmission Control Module (TCM) terminals and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Information Tune-ups or Service Bulletins for possible causes that may apply. If no problems are found, replace and program the Transmission Control Module Assembly (TCMA) in accordance with the Service Information.
- Perform the MPS6 VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Test Complete.
- Perform the MPS6 VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
- CHECK THE WIRING AND CONNECTORS
- The conditions necessary to set the 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.
- Check for any Service Information Tune-ups or Service Bulletins for possible causes that may apply.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the MPS6 VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
No
- Test Complete.