Wheel Speed Sensor Rear Right – Circuit Range/Performance Problem
Indicates an issue with the rear right 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 computer has noticed that the signal coming from the rear right wheel speed sensor isn't right. This could be due to a short circuit or an open circuit.
What the computer is actually seeing
The stability control system is monitoring the wheel speed sensors for consistent voltage signals. A reading lower than 0.6 volts or inconsistent signals over 10 milliseconds can trigger this code.
What a healthy reading looks like
Normal wheel speed sensor voltage should range from 0.5 to 5 volts, depending on wheel speed and load conditions.
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 at the rear right wheel speed sensor for any damage or corrosion. If damaged, repair or replace the harness.
- 22. Measure the voltage at the wheel speed sensor connector with the ignition on (engine off). Expect around 0.5 to 5 volts. If voltage is out of range, focus on the wiring.
- 33. If the wiring and connectors check out, swap the rear right wheel speed sensor with the rear left sensor and clear the code. Drive the vehicle again to see if the code returns.
- 44. If the code reappears but now points to the rear left sensor, replace the original rear right wheel speed sensor. If it stays on the rear right, there may be an issue with the ABS module.
Common causes
- Damaged wheel speed sensor harness
- Corroded connectors at the sensor
- Faulty wheel speed sensor
- Issues with the ABS module
- Breaks in the wiring loom
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity; you can drive it, but traction control and ABS may not work properly. Get it checked soon.
Will this code come back after I clear it?
If the underlying issue isn’t fixed, the code will return after a few driving cycles.
Why does this code pair with others like C049A?
Codes like C049A relate to other wheel speed sensors or systems. They're often interlinked in how traction and stability systems operate.
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