Chassis
generic / SAE
C0663
Left Rear Wheel Speed Sensor B Intermittent/Erratic
Intermittent signal from LF wheel speed sensor B. 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 / number6 / 63
Possible causes
- Connector loose or oxidized high
- Connector with intermittent contact under vibration low
- Harness routed against vibrating component 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: 60–400 €
- Estimated time: 0.5–2 h
- Component: lr wss b
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012