Wheel Speed Sensor Circuit Failure
A wheel speed sensor is reporting an issue.
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 wheel speed sensor measures how fast each wheel is turning. If it detects a problem, like no signal or too much variation, it triggers a fault code.
What the computer is actually seeing
The ABS control module expects a voltage signal from the wheel speed sensor. It should see a signal varying between 0 and 5 volts as the wheel spins, indicating speed changes.
What a healthy reading looks like
Normal wheel speed sensor output is between 0.5 to 3.5 volts when the wheel is turning; at 0 volts indicates no 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. Start by inspecting the wiring leading to the wheel speed sensor for any damage or corrosion. Decision point: Is wiring intact? If yes, go to step 2. If no, repair wiring and retest.
- 22. Check the connector at the wheel speed sensor for corrosion or looseness. Decision point: Is the connector secure with no corrosion? If yes, go to step 3. If no, fix the connector and retest.
- 33. Use a multimeter to test the voltage output of the wheel speed sensor while spinning the wheel. Expected output: Should vary between 0.5 to 3.5 volts. Decision point: Is the voltage within expected values? If yes, go to step 4. If no, replace the wheel speed sensor.
- 44. If all previous tests are good, verify the ABS module functionality or check for any stored codes that might indicate internal module issues. Decision point: Any other fault codes? If yes, follow those codes. If no, consider replacing the ABS module.
Common causes
- Damaged wheel speed sensor wiring
- Faulty wheel speed sensor
- Corroded or loose connectors at the sensor
- Problem with the ABS module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe, but you may lose ABS functionality. Monitor braking performance.
Will the code come back after clearing?
It can return if the underlying issue isn't resolved, like wiring or sensor problems.
Why is this code paired with others?
Multiple codes can indicate related issues impacting the ABS system or wheel speed readings.
Working a real vehicle right now?
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