What it means
This code identifies a subfault associated with the supply to the right-front wheel-speed sensor. The base code alone does not establish the specific supply-circuit failure.
How it works
The ABS control module monitors the supply circuit for the right-front wheel-speed sensor, which provides wheel rotation information used by ABS and stability control. C0035 identifies a subfault associated with that sensor's supply; the accompanying fault detail is needed to determine the specific supply-circuit failure.
Common causes
Most likely first.
- Wheel speed sensor failed
- Tone ring (reluctor) damaged or contaminated with debris
- Wiring break or chafe at wheel arch
- Wheel hub bearing with integrated sensor ring failed
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
How to diagnose it
- Read C0035's accompanying subfault information with an ABS-capable scan tool and compare right-front wheel-speed data with the other wheels at low speed.
- Inspect the right-front sensor connector and wiring along the wheel arch for chafing, breaks, corrosion, or a loose connection.
- Check the right-front sensor supply circuit for the condition indicated by the subfault, comparing measurements with the manufacturer's specification.
- Inspect the right-front tone ring or integrated hub sensor ring for damage, contamination, or bearing-related play that could disrupt the reading.
- If the supply and ring checks pass, test the right-front wheel-speed sensor and ABS module connections using the vehicle's diagnostic procedure.
Common fixes
- Clean debris from the right-front tone ring if contamination is affecting the reading.
- Repair chafed wiring or a poor connector in the right-front wheel-speed sensor supply circuit.
- Replace the right-front wheel-speed sensor if it fails checks against the manufacturer's specification.
- Replace the right-front hub or bearing assembly if its integrated sensor ring is damaged.
- Repair an ABS module connection or module fault only after the right-front circuit tests pass.
Can I keep driving?
Drive cautiously and leave extra stopping distance because ABS or stability control may be disabled, even if the regular brakes still work. Avoid slippery roads and have the right-front sensor supply fault diagnosed promptly; speedometer behavior may also be affected.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.