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

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


O1-O3:






O3-O4:






O4-O6:






Normal Operation
When the headlamp switch is placed in the PARKING LAMPS ON position, the smart junction box (SJB) provides a ground for the parking lamp relay coil (integrated into the SJB). When the parking lamp relay is energized, voltage is routed through circuit CLS30 (VT/WH) to the rear and front parking lamps. Ground is provided to the rear parking, liftgate and license plate lamps through circuit GD149 (BK/GY) or circuit GD151 (BK/GN). Ground is provided to the front parking and side marker lamps through circuit GD120 (BK/GN) or circuit GD123 (BK/GY).

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Liftgate lamp
- Liftgate release handle
- Headlamp assembly
- SJB