Chassis
generic / SAE
C0030
Left Front Wheel Speed Sensor Circuit Range/Performance
The signal from the left front wheel speed sensor is implausible relative to the other wheels. Typical causes are excessive air gap, contaminated tone ring or partial sensor failure.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 30
Possible causes
- Metal debris on tone ring (magnetic encoder) high
- Sensor air gap too large medium
- Sensor intermittent at temperature medium
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.5–2.5 h
- Component: wheel speed sensor fl
- Component: tone ring
- Component: hub bearing
Sources
References
sae:J2012