Test R: One Or More Parking, Rear Or License Plate Lamps Is Inoperative

PINPOINT TEST R: ONE OR MORE PARKING, REAR OR LICENSE PLATE LAMPS IS INOPERATIVE

R1-R4:

R4-R6:

R7-R10:

R10-R11:

Normal Operation
The smart junction box (SJB) provides 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 SJB detects the multifunction switch in the PARKING LAMPS ON position, the SJB provides a ground for the parking lamp relay coil. When the parking lamp relay is energized, voltage is sent through circuit 14 (BN) to the parking and license plate lamps. Ground is provided to the parking and license plate lamps through circuit 57 (BK).

Possible Causes
- Fuse
- Circuit 14 (BN) open
- Circuit 57 (BK) open
- Circuit 1032 (WH/BK) open
- Parking lamp relay
- Multifunction switch
- SJB