buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Brake Lamp > < Backup Lamps Inoperative|Page 13640
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Backup Lamp: Initial Inspection and Diagnostic Overview
Troubleshooting Hints

TRY FOLLOWING CHECKS BEFORE DOING SYSTEM CHECK.

1. Check Rear Fuse Block B/U LP Fuse by visual inspection.
2. If backup Lamps light in the wrong gear, adjust/replace Park/Neutral Position Switch.
3. If only some backup Lamps are inoperative, check bulb(s), connection(s) and wiring to suspect lamp(s).
^

Refer to System Check for a guide to normal operation.  See: System Check

^

Refer to System Diagnosis for diagnostic tests.  See: Flow of Diagnosis

Brake Lamp > < Backup Lamps Inoperative|Page 13640