Pinpoint Test G: DTC B2008

Headlamps

Pinpoint Tests

Pinpoint Test G: DTC B2008

Refer to Wiring Diagram Set 85, Headlamps for schematic and connector information. Diagrams By Number

Normal Operation

DTC B2008 sets on-demand when the Smart Junction Box (SJB) detects a short to ground from the wipers on input circuit CRW01 (WH).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Windshield wiper motor
- SJB



PINPOINT TEST G: DTC B2008

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

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G1 CHECK THE WINDSHIELD WIPER MOTOR


- Ignition OFF.
- Disconnect: Windshield Wiper Motor C125.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: SJB Self-Test.
- Repeat the SJB on-demand self-test.
- Is DTC B2008 still present?

Yes
GO to G2.

No
INSTALL a new windshield wiper motor. CLEAR the DTCs. REPEAT the self-test.

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G2 CHECK CIRCUIT CRW01 (WH) FOR A SHORT TO GROUND


- Ignition OFF.
- Disconnect: SJB C2280f.
- Measure the resistance between the windshield wiper motor C125-2, circuit CRW01 (WH), harness side and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to G3.

No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

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G3 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. 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.

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