OBD Guide

C050F

Left Rear Wheel Speed Sensor A Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • ABS/ESP indicator is on
  • Disabling the ABS system
  • Incorrect operation of cruise control
  • Errors in other systems related to wheel speed data

Causes

  • Malfunction of the left rear wheel speed sensor
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Damage to the ring gear on the hub
  • ABS/ESP module malfunction

How to Fix

  1. Visually inspect the sensor and wiring harness for damage
  2. Checking the resistance and signal of the sensor with a multimeter or oscilloscope
  3. Cleaning the contacts in the sensor connector
  4. Checking the condition of the ring gear on the hub
  5. Replacing the wheel speed sensor if necessary
  6. Checking and repairing the wiring harness if damage is found

Related codes

Error C050F by Vehicle Brand