Diagnostic Test
- CHECK THE PCM FOR DTCS
- CHECK THE BCM FOR DTCS
- With the scan tool, read BCM DTCs and record on the repair order.
Are there any Charging System or Battery DTCs set in the BCM?
Yes
- Perform the appropriate BCM DTC diagnostic procedure. Refer to DIAGNOSTIC CODE INDEX .
No
- Go To 3
- With the scan tool, read BCM DTCs and record on the repair order.
- CHECK RELATED HARNESS CONNECTIONS
- Disconnect all MSMD harness connectors.
- Disconnect all related in-line harness connections (if equipped).
- Disconnect the related component harness connectors.
- Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
- Proper connector installation.
- Damaged connector locks.
- Corrosion.
- Other signs of water intrusion.
- Weather seal damage (if equipped).
- Bent terminals.
- Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
- Terminals that have been pushed back into the connector cavity.
- Check for spread terminals and verify proper terminal tension.
Repair any conditions that are found.
- Connect all MSMD harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
- Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
- With the scan tool, erase DTCs.
- Test drive or operate the vehicle in accordance with the when monitored and set conditions.
- With the scan tool, read MSMD DTCs.
Is the same DTC active?
Yes
- Replace and program the Memory Seat Module-Driver (MSMD) in accordance with the Service Information. Refer to MODULE, MEMORY, REMOVAL .
- Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to POWER SEAT SYSTEM VERIFICATION TEST .
No
- Repairing the wiring harness or connections corrected the problem.
- Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to POWER SEAT SYSTEM VERIFICATION TEST .