Chassis
generic / SAE
C0056
Left Rear Wheel Speed Sensor Circuit Intermittent
Intermittent open or short on the left rear wheel speed sensor circuit. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 56
Possible causes
- Connector unseated high
- Wire chafe medium
- Connector with intermittent contact under vibration 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: 60–300 €
- Estimated time: 0.5–2 h
- Component: wheel speed sensor rl
- Component: sensor wiring
Sources
References
sae:J2012