Brake System Voltage Fault
The ABS control module detected a voltage issue in the brake system.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
This code means the braking system's computer is seeing a problem with the voltage levels it expects, which could indicate bad wiring, a faulty sensor, or issues with the power supply.
What the computer is actually seeing
The ABS module expects a voltage signal around 12V to 14V when the vehicle is on. If it detects voltage below 10V or above 15V, it triggers this code.
What a healthy reading looks like
Normal voltage levels should be between 12V to 14V. Unexpected values below 10V or above 15V indicate a problem.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the vehicle's battery voltage. Check for 12V to 14V. If below 10V, recharge or replace the battery. If fine, proceed to the next step.
- 22. Check all related wiring and connectors for damage, corrosion, or loose connections. Repair or replace as necessary and retest.
- 33. Inspect ground connections, especially those related to the ABS system. Clean any corrosion found and ensure tight connections.
- 44. Test the individual wheel speed sensors for proper resistance (typically 800-2000 ohms). Replace any faulty sensors detected.
- 55. If all previous checks are normal, assess the ABS control module for faults or failure.
Common causes
- Bad ABS control module
- Faulty wiring or connectors
- Weak or dead battery
- Corroded ground connections
- Faulty wheel speed sensors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best not to drive the vehicle until the issue is resolved, as this affects the braking system's performance.
Will this code come back after repairs?
If the underlying issue is properly fixed, this code should not return. Check all related systems.
Why does this code sometimes appear with others?
This can happen because multiple components are involved in braking. Faulty wiring can affect several sensors, triggering multiple codes.
Working a real vehicle right now?
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