Rear Wheel Speed Sensor Circuit Range/Performance Problem
Issues with the rear wheel speed sensor circuit detected.
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 rear wheel speed sensor is not sending proper signals to the computer, which can happen if the sensor is faulty, the wiring is bad, or there's a poor connection.
What the computer is actually seeing
The ABS control module monitors the rear wheel speed sensor voltage, which should fluctuate between 0.5V and 4.5V based on wheel speed.
What a healthy reading looks like
Voltage from the rear wheel speed sensor should be between 0.5V (stationary) to around 4.5V (at high speeds).
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 visible damage or corrosion. Repair as necessary. Decision: Does the wiring look good?
- 22. Measure the voltage at the rear wheel speed sensor connector with the ignition on and the wheel lifted. Expected: 0.5V to 4.5V. Decision: Is the voltage within range?
- 33. If voltage is incorrect, replace the rear wheel speed sensor. Decision: Did replacing the sensor fix the issue?
- 44. If replacing the sensor doesn’t resolve the problem, check for faults in the ABS module or other related systems.
Common causes
- Faulty rear wheel speed sensor
- Damaged wiring or connectors
- Corrosion in the sensor connector
- Wheel bearing issues affecting sensor alignment
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It's generally safe to drive, but the vehicle may have reduced braking performance. It's best to repair it soon.
Will the code come back after resetting?
Yes, if the underlying issue isn't fixed, the code will likely return.
Why does this code appear with other codes?
Multiple wheel speed sensor codes can appear due to a common issue, such as a wiring problem affecting multiple sensors.
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