OBD Guide

C0108

Abnormal Signal Of Front ABS Wheel Speed Sensor Left

C0108 is an OBD-II diagnostic trouble code meaning: Abnormal Signal Of Front ABS Wheel Speed Sensor Left. Common causes: wheel speed sensor malfunction, open or shorted sensor wiring harness. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • The ABS indicator on the dashboard is on
  • Disabling the ABS system
  • Incorrect operation of the stabilization system (if any)
  • Possible false alarms of the ESP system

Causes

  • Wheel speed sensor malfunction
  • Open or shorted sensor wiring harness
  • Contamination or damage to the ring gear on the hub
  • Poor contact in the sensor connector
  • ABS control unit malfunction

How to Fix

  1. Visually check the sensor and its connector for damage
  2. Clean the surface of the sensor and the ring gear from dirt
  3. Check the sensor resistance (usually 800-2000 Ohm)
  4. Check the integrity of the sensor wiring harness
  5. Check the gap between the sensor and the ring gear
  6. If necessary, replace the wheel speed sensor
  7. Reset the error and check the operation of the ABS system

Related codes

Error C0108 by Vehicle Brand

FAQ

What does the C0108 code mean?

C0108 is an OBD-II diagnostic trouble code that indicates: Abnormal Signal Of Front ABS Wheel Speed Sensor Left

What causes a C0108 error code?

The most common causes of C0108 include: Wheel speed sensor malfunction; Open or shorted sensor wiring harness; Contamination or damage to the ring gear on the hub; Poor contact in the sensor connector.

How do I fix a C0108 diagnostic trouble code?

To fix C0108: Visually check the sensor and its connector for damage. Clean the surface of the sensor and the ring gear from dirt. Check the sensor resistance (usually 800-2000 Ohm). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0108?

Limited driving only, diagnose soon

How much does it cost to fix C0108?

The estimated repair cost for C0108 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat