Rear Wheel Speed Sensor 'A' Circuit Malfunction
There’s a problem with the rear wheel speed sensor 'A' 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 rear wheel speed sensor 'A' measures how fast the rear wheel is spinning. If there's an issue, it might cause problems with traction control or ABS.
What the computer is actually seeing
The computer expects a voltage signal from the rear wheel speed sensor 'A' that should fluctuate between 0 to 5 volts as the wheel turns. If it sees a constant reading near 0 volts or 5 volts without changes, it flags an error.
What a healthy reading looks like
The expected voltage from the rear wheel speed sensor while the wheel is spinning should be between 0.5V to 4.5V depending on the speed of the vehicle.
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 harness and connector for damage or corrosion. Fix as necessary.
- 22. Check the resistance of the rear wheel speed sensor. It should typically be between 1,000 to 2,000 ohms. Replace if out of specification.
- 33. Use a scan tool to monitor the sensor voltage while spinning the wheel. Verify it fluctuates within 0.5V to 4.5V. If not, replace the sensor.
- 44. If the sensor tests good, check the wheel bearing for play or damage, which might misalign the sensor.
Common causes
- Damaged or corroded wiring to the sensor
- Faulty rear wheel speed sensor
- Bad wheel bearing causing sensor misalignment
- Connector issues with dirt or corrosion
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with code C1035?
It’s moderate severity. You can drive but expect potential issues with traction control or ABS features.
Will this code come back after clearing it?
If the underlying issue isn’t fixed, the code will return.
Why might this code appear alongside others?
Sensor issues or wiring problems can affect multiple circuits, leading to multiple codes.
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