Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check rear compartment fuse block ACC fuse by visual inspection.
2. Check engine compartment fuse/relay center PARK/REV fuse by visual inspection.
3. Check that ground G400 is clean and tight.
4. Before component replacement, check that system connections are clean and tight.
5. 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).
6. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.