Chassis
generic / SAE
C0045
Left Rear Wheel Speed Sensor Circuit Malfunction
The ABS control module has detected a fault in the left rear wheel speed sensor circuit. Loss of wheel speed information disables ABS and stability control, and a separate ABS warning lamp is illuminated.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 45
Possible causes
- Wheel speed sensor failed high
- Tone ring damaged or contaminated medium
- Wiring break or chafe under chassis medium
- Wheel hub bearing with integrated sensor ring failed low
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
- Component: abs control module
- Component: tone ring
- Component: sensor wiring
Sources
References
sae:J2012