Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check Trunk 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.
^ 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 he 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.