Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Code Description
The operating voltage required to supply the ABS module, hydraulic pump and isolation valves is in a range between 10 and 16 volts.
Fused battery voltage is supplied to the ABS module by Battery Junction Box (BJB) fuse 47 (40A) along circuit SBB47 (WH/RD) and BJB fuse 33 (40A) along circuit SBB33 (RD). Fused ignition voltage is supplied to the ABS module by BJB fuse 53 (10A) along circuit CBB53 (GY/BN). Ground is provided to the ABS module along circuit GD121 (BK/YE).
- DTC B1317 (Battery Voltage High) - If the voltage supplied to the ABS module exceeds 16 volts during the ABS module self-test or normal operation, with vehicle speed greater than 5 km/h (3 mph), DTC B1317 will be set.
- DTC B1318 (Battery Voltage Low) - If the voltage supplied to the ABS module falls below 10 volts during the ABS module self-test or normal operation, with vehicle speed greater than 5 km/h (3 mph), DTC B1318 will be set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Vehicle charging system
- ABS module
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.