Test I: The Courtesy Lamps Are Inoperative - From The Instrument Panel Dimmer Switch

PINPOINT TEST I: THE COURTESY LAMPS ARE INOPERATIVE - FROM THE INSTRUMENT PANEL DIMMER SWITCH

Normal Operation
The lighting control module (LCM) monitors the headlamp switch status on circuit 1034 (BK/WH) to determine if the courtesy lamps are requested. Based on the headlamp switch status, the LCM energizes the courtesy lamps through circuit 53 (BK/LB).

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Instrument panel dimmer switch
- LCM

I1-I2:

I3-I4: