OBD-II code · Chassis
C0052 Left Rear Wheel Speed Sensor Circuit Low
Voltage in the left rear wheel speed sensor circuit is below the expected range. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
Is it safe to drive with C0052?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyWiring shorted to ground
- PossibleSensor open internally
- Less likelyConnector pins corroded - high contact resistance
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
- Parts involved
- Wheel Speed Sensor Rl, Sensor Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.