Wheel Speed Sensor Signal of Wheel 2 - Circuit High
Wheel 2 speed sensor is reporting a high signal issue.
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What it means (plain English)
The computer thinks the speed sensor for the left front wheel is sending a voltage that's too high, indicating a possible short or wiring issue.
What the computer is actually seeing
The wheel speed sensor should output a voltage in the range of 0 to 5 volts depending on the wheel's speed. If it exceeds 5 volts, that's when the fault code triggers.
What a healthy reading looks like
Wheel speed sensor output should be between 0-5 volts; ideally around 2.5 volts when stationary, increasing with 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 connector for the left front wheel speed sensor. Look for frays, corrosion, or damage. If found, repair or replace as necessary. Decision: Is wiring intact? (Yes/No)
- 22. Measure the voltage at the wheel speed sensor connector with the ignition on and engine off. You should see a voltage between 0-5 volts. Decision: Is voltage within expected range? (Yes/No)
- 33. Disconnect the wheel speed sensor and check the resistance across the terminals. It should read between 1-2 kilohms typically. Decision: Is resistance within range? (Yes/No)
- 44. If all previous checks are good, replace the wheel speed sensor and clear the code. Test drive to verify if the code returns.
Common causes
- Damaged wiring or connectors in the wheel speed sensor circuit
- Faulty wheel speed sensor at wheel 2 (left front)
- Corrosion in the connector or sensor housing
- Issues in the ABS module affecting signal interpretation
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to fix it soon. While it might be drivable, you could lose ABS and traction control functions.
Will this code come back after I clear it?
If the underlying issue isn't fixed, the code will likely return.
Why does this code sometimes pair with C004A?
C004A indicates a similar issue with the right front sensor. They can appear together if there's a systemic problem.
Working a real vehicle right now?
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