General Electronic Module

1. The interior lighting system is a Generic Electronic Module (GEM)/Central Timer Module (CTM) controlled system.
2. Verify the customer concern by operating the interior lamps.
3. Visually inspect for obvious signs of mechanical and electrical damage:

VISUAL INSPECTION CHART

MECHANICAL
^ Switch(es)

ELECTRICAL
^ Fuse(s)
^ Damaged wiring harness
^ Loose or corroded connector(s)
^ Circuitry open/shorted
^ Damaged bulb(s)

4. If the concern is not visually evident, determine the symptom and proceed to the symptom chart. General Electronic Module