OBD Guide

C0655

Left Front Wheel Speed Sensor B Intermittent/Erratic

C0655 is an OBD-II diagnostic trouble code meaning: Left Front Wheel Speed Sensor B Intermittent/Erratic. Common causes: damage to the wheel speed sensor, sensor or magnetic ring dirty. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS light is on
  • Incorrect ABS operation
  • Lost speed data on dashboard
  • Activation of the stabilization system for no reason

Causes

  • Damage to the wheel speed sensor
  • Sensor or magnetic ring dirty
  • Open or shorted wiring harness
  • Poor contact in the sensor connector
  • ABS control unit malfunction

How to Fix

  1. Check the condition of the sensor and magnetic ring
  2. Clean the sensor from dirt
  3. Check the integrity of the wiring harness
  4. Check the contacts in the sensor connector
  5. Replace the wheel speed sensor if necessary
  6. Check the operation of the ABS system after repair

Related codes

Error C0655 by Vehicle Brand

FAQ

What does the C0655 code mean?

C0655 is an OBD-II diagnostic trouble code that indicates: Left Front Wheel Speed Sensor B Intermittent/Erratic

What causes a C0655 error code?

The most common causes of C0655 include: Damage to the wheel speed sensor; Sensor or magnetic ring dirty; Open or shorted wiring harness; Poor contact in the sensor connector.

How do I fix a C0655 diagnostic trouble code?

To fix C0655: Check the condition of the sensor and magnetic ring. Clean the sensor from dirt. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0655?

Do not drive — repair immediately

How much does it cost to fix C0655?

The estimated repair cost for C0655 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat