Flow of Diagnosis

1. Verify the customer concern by operating the handles, locks, latches and mechanisms.
2. Visually inspect for obvious signs of mechanical and electrical damage.

NOTE: Be sure the battery is fully charged. Before starting electrical diagnosis, check for mechanical binds by manually operating the door lock. Then operate the lock system several times from each switch, while observing the operation of all door locks.

VISUAL INSPECTION CHART

Mechanical
^ Binding latches
^ Door lock cylinder
^ Misaligned door
^ Lock actuator

Electrical
^ Fuse
^ Relays
^ Switch
^ Wiring harness
^ Loose or corroded connections

3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart. Symptom Related Diagnostic Procedures