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

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

Normal Operation
The smart junction box (SJB) monitors the instrument panel dimmer switch status on circuit CLN28 (GN/BU) to determine if the courtesy lamps are requested. Based on the instrument panel dimmer switch status, the SJB supplies voltage to the courtesy lamps through circuit CLN03 (YE/GY).

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

K1-K3:

K4: