OBD-II code · Chassis
C0633 Front Half Shaft Speed Sensor
Generic fault on front half shaft speed sensor.
Is it safe to drive with C0633?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor failed
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Front Halfshaft Speed Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.