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.
Affected components
- Wheel speed sensor rl
- Sensor wiring
Common causes
- High likelihood: Wiring shorted to ground
- Medium likelihood: Sensor open internally
- Low likelihood: Connector pins corroded - high contact resistance
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.