ABS Wheel Speed Sensor Circuit Failure
There's a fault with the ABS wheel speed sensor circuit.
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)
The ABS module isn't getting accurate input from one of the wheel speed sensors, which could be due to wiring issues or a bad sensor. It could affect braking performance.
What the computer is actually seeing
The ABS module monitors the voltage signals from each wheel speed sensor, which should be around 0.5V to 5V depending on wheel speed. An open or short circuit will cause the system to trigger a fault.
What a healthy reading looks like
Wheel speed sensor signals typically range from 0.5V (stationary) to 5V (moving), with expected frequency changes as vehicle speed increases.
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 wiring and connectors at the affected wheel speed sensor for damage or corrosion. Decision: If damaged, repair or replace. If good, proceed.
- 22. Test the wheel speed sensor output using a multimeter; check for voltage output while the wheel is rotated. Decision: If output voltage is absent, replace the sensor. If present, continue.
- 33. Check the ABS control module for fault codes; diagnose any related codes to determine if module replacement is required. Decision: If related codes indicate a module failure, replace the ABS control module.
Common causes
- Damaged ABS wheel speed sensor
- Faulty wiring or connectors
- Corroded terminals or connectors
- Issues with the ABS control module
- Mechanical interference with the sensor
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderately unsafe; while you can drive, you might experience ABS issues during braking.
Will the issue come back after repairs?
If properly diagnosed and repaired, the code shouldn't return. Regular checks are advised.
Why does this code sometimes show up with other codes?
It often pairs with related wheel speed sensor codes due to shared circuits or common components.
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