TorqueMech Beta
TorqueMech OBD Code Guide

C0040 - Right Front Wheel Speed Sensor Circuit

Wheel speed sensor circuit fault (RF).

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Code Overview

Wheel speed sensor circuit fault (RF).

Common Causes

  • Wheel speed sensor failure
  • Wiring damage at wheel
  • Tone ring damage/debris

Diagnostic Steps

  1. Inspect sensor/harness near wheel
  2. Clean sensor tip (if accessible)
  3. Verify sensor signal on scan tool
  4. Inspect tone ring

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