Electronic Brake Control Module - Initial Inspection and Diagnostics
Electronic Brake Control Module: Initial Inspection and Diagnostic Overview
ABS MODULE INSPECTION AND VERIFICATION
1. Visually inspect for obvious signs of electrical damage.
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Smart Junction Box (SJB) Fuse 14 (7.5A)
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Battery Junction Box (BJB) fuses:
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2 (40A)
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6 (40A)
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28 (30A)
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Damaged wiring harness
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Loose or corroded connectors
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4WABS control module
2. If the concern remains after inspection, connect the WDS or equivalent tester to the Data Link Connector (DLC) located beneath the instrument
panel and select the vehicle to be tested from WDS or equivalent tester menu.
3. If WDS or equivalent tester does not communicate with the vehicle:
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check that the program card is properly installed.
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check the connections to the vehicle.
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check the ignition switch is in RUN position.
4. If the WDS or equivalent tester still will not communicate with the vehicle, see COMMUNICATIONS NETWORK DIAGNOSIS.
5. If no DTCs related to the concern are retrieved, see the Symptom Troubleshooting Chart-ABS Module. See: Symptom Related Diagnostic
Procedures
