Troubleshooting Hints - 6-Way Power Seats

Perform before beginning System Diagnosis
1. Check Defog/Seats Circuit Breaker #12 by operating the Rear Defogger.
2. Check that ground G305 is clean and tight.
3. Check for poor connections at Power Seat Switch Connector or Motor Assembly connections.
4. If Defog/Seats Circuit Breaker opens whenever the Power Seat Switch is operated, check for short to ground through CKTs 282, 283, 284, 285, 286 and 287. Disconnecting motors one at a time can be helpful.
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer to "General Troubleshooting Procedures,"). Diagnostic Aids
^ Refer to System Diagnosis. System Diagnosis - 6-Way Power Seats