All codes/C0063

C0063

Right Rear Wheel Speed Sensor Circuit High

Moderate severity

Voltage in the right rear wheel speed sensor circuit is above the expected range. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.

Voltage in the right rear wheel speed sensor circuit is above the expected range. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.

Common causes

  • Wiring shorted to B+

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $90-390

  • Connector water ingress

    A plausible cause — test and verify before replacing parts.

    medium

    Typical part cost: $90-390

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does C0063 mean?

C0063 means "Right Rear Wheel Speed Sensor Circuit High". It is a generic OBD-II code that points to a fault in the chassis.

What are the most common causes of C0063?

wiring shorted to b+; connector water ingress; connector pins corroded - high contact resistance — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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