Troubleshooting Hints - Memory Seats

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check I/P Fuse Block IGN 1 Fuse and TMNSS Fuse by inspection.
2. Check RH Rear Power Distribution Center Fuse Block #1 I/P 1 Fuse by visual inspection.
3. Remove RH Rear Power Distribution Center Fuse Block #2 PWR ST Circuit Breaker and check for continuity using an ohmmeter.
4. If seat motor internal circuit breaker trips, it will not reset until voltage is removed from motor.
5. Make sure that G202 is clean and tight.
6. Seat back recline is not a part of the memory function, but manual movements are controlled by the memory seat/mirror control module. There module will chime during diagnostic mode 2 if the recline position sensor is tested.
7. If the parallel parking mode is inoperative and the memory recall functions with the gear selector out of PARK, check for an open or short to ground in CKT 541 (BRN). If OK, replace the Park/Neutral Position (PNP) Switch.
8. If the memory seat/mirror control module does not enter the diagnostic modes:
^ Check for proper grounding with the memory seat diagnostic connector.
^ Check for an open in CKT 571 (YEL/BLK).
^ Check for proper terminal contact at memory seat/mirror control module connector C1 terminal D12.
^ If all OK, replace the memory seat/mirror control module.
9. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections.
^ 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) (refer to Troubleshooting Procedures). Diagnostic Aids
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (refer to Troubleshooting Procedures). Diagnostic Aids