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  . Perform appropriate DTC test. After repair is complete, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS)  . Recheck system operation.