C0633

Front Half Shaft Speed Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Incorrect operation of the ABS system
Loss of stabilization when moving
Unusual noises from the front wheel area

Causes

Axle speed sensor malfunction
Broken or damaged wiring
Oxidation or damage to connectors
Mechanical damage to the axle shaft
Wheel bearing problems

How to Fix

Check the integrity of the sensor and its fastening
Inspect wiring and connectors for damage
Measure the sensor resistance (compare with the norm)
Check for dirt or metal shavings on the sensor
If necessary, replace the sensor or restore the wiring

Related codes

C0634 C0635 C0035 C0040