EngineLightCodes
Chassis code

C0063 Right Rear Wheel Speed Sensor Circuit High

Severity
Fix soon
Typical repair cost
$90–$390
Do it yourself
Possible, medium
Shop time
0.5–2 hours

Voltage in the right rear wheel speed sensor circuit is above the expected range.

How the engine computer detects it

Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.

Written from public technical sources and not yet checked by a mechanic. How we write these pages

Symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Common causes

  1. Wiring shorted to B+ Most likely
  2. Connector water ingress Possible
  3. Connector pins corroded - high contact resistance Less likely

How to diagnose C0063

  1. Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
  2. Inspect the parts involved: wheel speed sensor rr, sensor wiring.
  3. Work through the causes above from most to least likely, cheapest checks first.
  4. Clear the code and drive a full drive cycle to confirm the repair held.

Vehicles that report C0063 most

VehicleYearsReportsMedian miles
Can-Am Ryker2019–20239—

Counts of owner complaints to the NHTSA that mention C0063 (11 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.

Reading the code

C
Chassis
0
Generic (SAE) code
063
Specific fault

Questions drivers ask

Can I drive with code C0063?

Usually yes, carefully. Your hydraulic brakes normally keep working, but ABS, traction and stability control may be off, so the wheels can lock in a hard stop. If the red brake warning light is on, the pedal feels soft or different, or the car takes longer to stop, don't drive: have it towed.

Can I fix C0063 myself?

Often yes, with an OBD-II scanner and basic tools. Difficulty: medium. Start with the cheapest checks before replacing expensive parts.

Often reported together

Codes that owners mention in the same NHTSA complaints as C0063. They can point to a shared cause, so it's worth checking them together.

This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.