OBD-II code · Chassis
C0557 Left Rear Wheel Speed Sensor A Incorrect Component Installed
Left Rear Wheel Speed Sensor A Incorrect Component Installed: the installed component does not match the type the vehicle expects. Wheel-speed signals feed ABS, ESC, traction control and the speedometer.
Is it safe to drive with C0557?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWrong sensor or tone ring fitted
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
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Wss Lr
Related codes
- C0665Left Rear Wheel Speed Sensor B Incorrect Component Installed
- C0554Longitudinal Acceleration Sensor Circuit High
- C0555Lateral Accelerometer Voltage Out of Range
- C0556Brake Booster Pressure Sensor Performance
- C0558Right Rear Wheel Speed Sensor A Incorrect Component Installed
- C0559Power Steering Control Module Range/Performance – Rear
- C055AABS Pump Motor Supply Voltage Circuit A High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.