Flow of Diagnosis

Inspection and Verification

Visual Inspection Chart:

1. Verify the vehicle owner's original concern by operating the courtesy lamps to duplicate the condition.

2. NOTE: Clear all DTCs after fault has been repaired. Disconnecting relays and connectors may set DTCs.

3. NOTE: When a passenger door or liftgate has been left ajar upon exit of vehicle, the CTM will not reconize a change of state upon re-entry of those doors in order to wakeup the CTM and illuminate interior.

Inspect to determine if one of the following mechanical or electrical concerns apply:

4. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to the following symptom chart.