Number C0035: Right Front Wheel Speed Sensor Supply
C0035 reports a fault in the feed that powers the right front active wheel speed sensor, the right-hand partner of C0032. The ABS/ESC module supplies the sensor with a regulated voltage; an open feed, a short to ground or to another voltage, or a supply outside its window leaves the sensor unable to
Can you drive with C0035?
Severity: Fix promptly. Yes, carefully — the brakes still work, but ABS (and usually traction/stability control) is disabled.
If you ignore it: You lose the anti-lock safety net exactly when you need it — a panic stop or a wet road. Wheel-speed faults can also confuse the transmission and speedometer.
This is the #18 most common code in our top-150 library, in the abs & brakes (c-codes) family (Chassis system). Severity is Number Nest's editorial triage — if the light is flashing or the car feels unsafe, stop driving it whatever any page says.
What C0035 means
C0035 reports a fault in the feed that powers the right front active wheel speed sensor, the right-hand partner of C0032. The ABS/ESC module supplies the sensor with a regulated voltage; an open feed, a short to ground or to another voltage, or a supply outside its window leaves the sensor unable to send a speed signal. NHTSA's EPS safety report lists C0035 with this meaning in its table of J2012 wheel speed codes. Caution with older GM vehicles: GM numbers its four wheel speed sensor circuits C0035 to C0050 in its own scheme (bulletin 16-NA-248, PIE0456), so a GM C0035 is a sensor circuit fault rather than a supply fault. ABS, traction and stability control switch off and the ABS lamp lights; normal braking remains.
Systems involved: rf wss, wss supply circuit.
Causes, ranked by likelihood
| # | Cause | Likelihood |
|---|---|---|
| 1 | Open or shorted supply wire to the right front sensor | most likely |
| 2 | Corroded or loose sensor connector | possible |
| 3 | Sensor shorted internally and pulling the supply down | possible |
| 4 | Sensor supply output of the ABS module faulty | less common |
Check them in order — the list is ranked so the likely, cheaper causes come before the expensive part.
Symptoms you may notice
- ABS warning lamp on
- ABS, traction and stability control disabled
- No speed signal from the right front wheel
Misdiagnosis traps
- Replacing the part named by the code title without testing. The code reports a failed self-test; the cause list above is ranked so the likely, cheap causes are checked before the expensive part is condemned.
- Clearing the code and declaring victory when the light stays off for a day — the monitor that sets this code runs only under specific driving conditions.
(General diagnostic guidance for this code family — no code-specific trap is published for this code.)
How a good shop confirms it
- Confirm the code and record any companion codes — companions narrow the system fast.
- Inspect the affected components and their wiring/connectors for damage, corrosion and looseness.
- Test the top-ranked cause with live data or a multimeter before replacing anything.
(Standard diagnostic path for this family, labeled as general guidance.)
Repair options & costs
| Repair | Shop total (parts + labor) | DIY (parts only) | Difficulty |
|---|---|---|---|
| ABS wheel speed sensor | $123 – $350 | $60 – $200 (parts only) | 2/5 |
National ranges from Number Nest's cost model (midsize car, independent shop, US-average labor). Published cross-check — ABS wheel speed sensor: CarMD 2026 national average $314.
OBDex repair data for this code rates the job difficulty medium with a typical labor time in the 0.5–2 hour range and DIY possible: yes.
Price this repair in your state
Estimated total: — (midsize car, independent shop)
Frequently asked questions
How much does it cost to fix C0035?
The fix most associated with this code — abs wheel speed sensor — runs $123 – $350 at an independent shop for a midsize car in our cost model (parts + labor, US average). The code names a system, not a part, so confirm the cause before spending: the ranked causes above are ordered by likelihood.
Can I drive with C0035?
See the can-you-drive verdict above — it is based on the system involved and the cascading-damage risk, and it is our editorial triage, not a manufacturer instruction. If the light is flashing or the car feels unsafe, stop driving it regardless of any code.
Will C0035 clear itself?
If the fault was a one-off (a loose cap, a cold-start glitch), the light can go out after several clean trips and the code ages into history. A fault that is still present re-sets the code as soon as the car runs that self-test again — monitors run under specific conditions, which is why "it hasn't come back in two days" is not proof of a fix.
Will my car fail inspection with C0035?
In states with OBD-based emissions inspection, yes — an illuminated check-engine light or an incomplete readiness monitor fails the test regardless of what the tailpipe would show. C-codes (ABS) fall under safety inspection instead in states that have one.
What should I check first for C0035?
The first item on the ranked-causes list above — it is ranked likelihood-first for exactly this reason — plus the free checks: recent work in the area (connectors left loose are a classic), fluid levels, and the battery and grounds on electrical codes.
Where this data comes from
Code facts, causes and symptoms come from OBDex — an open dataset of independently authored descriptions of the standardized generic OBD-II codes (CC0 1.0, public domain; github.com/foerbsnavi/OBDex). The SAE J2012 document itself is copyrighted and is not reproduced here. Cost ranges are Number Nest's own US planning model: national parts and labor ranges cross-checked against the CarMD Vehicle Health Index 2026 published averages, with labor adjustable by the BLS OEWS May 2025 state wage index for auto technicians (occupation 49-3023) — a wage index, not a surveyed shop rate. Severity and can-you-drive notes are our editorial triage, not a manufacturer instruction.