Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Ensure inside mirror switch is ON.
2. Check IP Junction Block IGN SEN Fuse for continuity.
3. Check BRN (CKT 241) wiring for an open or short to ground.
4. Make sure G400 is clean and tight.
5. Check that connector to mirror is firmly mated.
6. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections.
7. 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 be checked by monitoring for a voltage drop with the system operational (under load).
8. Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.