ABS Wheel Speed Sensor Performance
This code indicates an issue with the ABS wheel speed sensor's performance.
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 system is trying to read the speed of the wheels, but something isn't right, like a sensor giving bad information or a connection problem.
What the computer is actually seeing
The ABS module expects to see real-time wheel speed data from the wheel speed sensors; any severe deviation or lack of input triggers this code.
What a healthy reading looks like
Normal wheel speed sensor output is about 0-5 volts based on wheel speed, with good continuity through the sensor and wiring regardless of speed.
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 wiring and connectors at the wheel speed sensor for damage, corrosion, or loose connections. Repair as needed. Decision: Are wiring and connections okay? (Yes: go to step 2; No: repair wiring/connectors)
- 22. Check the resistance of the wheel speed sensor. It should be within 1-2 kilohms. Measure this with a multimeter. Decision: Is the resistance within spec? (Yes: go to step 3; No: replace the wheel speed sensor)
- 33. Monitor the wheel speed sensor output while spinning the wheel. The voltage should change as the wheel turns. Use a scope if you can. Decision: Is the output signal stable and within range? (Yes: replace the ABS module; No: replace the wheel speed sensor).
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Faulty ABS control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's drivable but ABS functions may be compromised; fix soon.
Will the code come back after clearing?
Possibly, if the underlying issue is not fixed, the code may return.
Why is this paired with other codes?
Multiple codes may indicate broader ABS system issues or problems affecting multiple sensors.
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