C050A

Right Front Wheel Speed Sensor A Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$22–111 (est.)

Symptoms

ABS/ESC indicator lights up
Unstable ABS operation
Disabling cruise control
Incorrect speedometer readings

Causes

Damage to the sensor wiring harness
Wheel speed sensor is dirty or damaged
Incorrect gap between sensor and gear ring
Contact corrosion
Problems with the toothed ring (eg crack)

How to Fix

Check the condition of the sensor wiring harness for damage.
Clean the sensor and gear ring from dirt
Check the gap between the sensor and the toothed ring
Check the integrity of the toothed ring
If necessary, replace the wheel speed sensor or wiring harness.

Related codes

C050B C050C C050D