Pinpoint Test 1

PINPOINT TEST 1: ONE OR MORE PARKING, REAR OR LICENSE PLATE LAMP IS INOPERATIVE

Normal Operation
When the main light switch is placed in the PARKING LAMPS ON position, the smart junction box (SJB) provides a ground for the parking lamp relay coil (integral to the SJB). When the parking lamp relay is energized, voltage is routed through circuit (V/W) to the rear and front parking lamps. Ground is provided to the rear parking and license plate lamps through circuit (B/GY). Ground is provided to the front parking and side marker lamps through circuit (B/G).

Possible Causes
- Fuse
- Wiring, terminals or connectors
- Bulb holder
- SJB

Diagnostic Procedure

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: The battery ground cable must be disconnected for accurate test results when checking ground circuits for continuity to ground.

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