C003A

Right Rear Wheel Speed Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

ABS/ESP indicator is on
Incorrect operation of the ABS/ESP system
Loss of speed on the speedometer
Activating emergency mode

Causes

Speed sensor damage
Open or shorted wiring harness
Sensor contamination
Problems with the ring gear on the hub
Malfunction of the ABS/ESP control unit

How to Fix

Check the visual condition of the sensor and wiring harness
Clean the sensor from dirt
Check the sensor resistance (usually 800-2000 Ohm)
Check for signal from the sensor when the wheel rotates
If necessary, replace the sensor or repair the wiring harness

Related codes

C0035 C0036 C0037 C0038 C0039