Flow of Diagnosis
1. Verify the customer concern by operating the system.2. Visually inspect for obvious signs of mechanical or electrical damage.
VISUAL INSPECTION CHART
Mechanical
^ Binding latch mechanisms
^ Binding linkage
^ Misaligned door
Electrical
^ Battery
^ Fuse
^ Wiring harness
^ Loose or corroded connector(s)
^ Open/short circuit
^ Door lock switch
^ Power door lock actuator
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart. Symptom Related Diagnostic Procedures