Test R: The Exterior Lamps Are Inoperative

PINPOINT TEST R: THE EXTERIOR LAMPS ARE INOPERATIVE

R1-R3:

R3-R6:

Normal Operation
The smart junction box (SJB) sends a reference signal to the multifunction switch through circuit 1032 (WH/BK). When the SJB detects the multifunction switch in the parking lamps ON position, the SJB provides a ground for the parking lamp relay coil. Voltage to the parking lamp relay is provided internally by the SJB. When the parking lamp relay is energized, voltage is sent to the parking and license lamps.

Possible Causes
- circuit 1032 (WH/BK) open
- parking lamp relay
- multifunction switch
- SJB