Diagnostic Procedure

Check for Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS) . If no DTCs exist, proceed to TROUBLE SHOOTING  and diagnose vehicle by symptom. If DTCs exist, go to MEMORY SEAT MODULE (MSM) DIAGNOSTIC TROUBLE CODES (DTCs). Perform appropriate DTC test. After repair is complete, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS) . Recheck system operation.