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Test K: The Interior Lamps Are Inoperative - From The Headlamp Switch

PINPOINT TEST K: THE INTERIOR LAMPS ARE INOPERATIVE - FROM THE HEADLAMP SWITCH


K1:






K2-K4:






Normal Operation
The smart junction box (SJB) monitors the dimmer control switch status on circuit 1404 (YE) to determine if the courtesy lamps are requested. Based on the dimmer control switch status, the SJB then energizes the interior lamp circuits.

Possible Causes
- Circuit 1404 (YE) open
- Circuit 1410 (TN/OG) open
- Dimmer control switch
- SJB