OBD-II code · Chassis
C0656 Left Front Wheel Speed Sensor B Correlation
Left Front Wheel Speed Sensor B Correlation: the value does not correlate with the related sensor or expected pattern. Wheel-speed signals feed ABS, ESC, traction control and the speedometer.
Is it safe to drive with C0656?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor or tone ring fault
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
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Lf Wss B, Lf Wss
Related codes
- C0653Left Front Wheel Speed Sensor B Circuit Low
- C0654Left Front Wheel Speed Sensor B Circuit High
- C0655Left Front Wheel Speed Sensor B Intermittent/Erratic
- C0657Left Front Wheel Speed Sensor B Incorrect Component Installed
- C0658Right Front Wheel Speed Sensor B Circuit/Open
- C0659Right Front Wheel Speed Sensor B Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.