Pinpoint Test R: The Parking, Rear or License Plate Lamps Are On Continuously

Parking, Rear and License Plate Lamps

Pinpoint Test R: The Parking, Rear Or License Plate Lamps Are On Continuously

Refer to Wiring Diagram Set 92, Parking, Rear and License Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The Smart Junction Box (SJB) provides ground for the parking lamp relay coil when a request for the parking lamps is received. When the parking lamp relay is energized, voltage is sent through circuit CBP08 (GY/YE) to the rear and front parking lamps.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Headlamp switch
- SJB



PINPOINT TEST R: THE PARKING, REAR OR LICENSE PLATE LAMPS ARE ON CONTINUOUSLY

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R1 CHECK CIRCUIT CBP08 (GY/YE) FOR A SHORT TO VOLTAGE (TO REAR LAMPS)


- Disconnect: SJB C2280e.
- Do the rear parking lamps continue to illuminate?

Yes
REPAIR the circuit. TEST the system for normal operation.

No
GO to R2.

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R2 CHECK CIRCUIT CBP08 (GY/YE) FOR A SHORT TO VOLTAGE (TO FRONT LAMPS)


- Disconnect: SJB C2280a.
- Do the front parking lamps continue to illuminate?

Yes
REPAIR the circuit. TEST the system for normal operation.

No
GO to R3.

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R3 CHECK FOR CORRECT SJB OPERATION


- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new SJB. REFER to Body Control Systems. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

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