Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints - Memory Seats

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check the IP fuse block PWR STS circuit breaker 3 for continuity. If open, check for a short to ground in CKT 1340 (ORN).
2. Check the IP fuse block CHIME Fuse 1D by visual inspection. If open, check for a short to ground in CKT 39 (PNK).
3. Check the IP fuse block T/SIG/BU LP/BTSI Fuse 1B by visual inspection. If open, check for a short to ground in CKT 539 (PNK).
4. Check the IP fuse block CTSY LP/PWR MIR Fuse 6A by visual inspection. If open, check for a short to ground in CKT 640 (ORN).
5. Check that ground G202 is clean and tight.
6. If seat motor internal circuit breaker trips, it will not reset until voltage is removed from motor.
7. If the memory seat/mirror module does not enter the diagnostic modes:
^ Check for proper grounding with the memory seat/mirror module diagnostic connector.
^ Check for an open in CKT 571 (YEL/BLK).
^ Check for proper terminal contact at memory seat/mirror module connector C1 cavity D12 (YEL/BLK).
^ If all OK, replace the memory seat/mirror module.
8. The memory seat/mirror module will not allow more than 3 seat motors to run at one time.
9. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections.
10. Check for broken (or partially broken) wire inside of the insulation which could cause a 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 he checked by monitoring for a voltage drop with the system operational (under load).
11. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.