OBD Guide

C0654

Left Front Wheel Speed Sensor B Circuit High

C0654 is an OBD-II diagnostic trouble code meaning: Left Front Wheel Speed Sensor B Circuit High. Common causes: wheel speed sensor malfunction (left front, circuit b), open or short circuit in wiring harness. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • ABS/ESP indicator is on
  • The stabilization system may turn off
  • Incorrect operation of cruise control (if equipped)
  • Errors in other systems related to wheel sensor data

Causes

  • Wheel speed sensor malfunction (left front, circuit B)
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Mechanical damage to the sensor (for example, during suspension repairs)
  • Problems with the ABS module
  • Severe corrosion in the area where the sensor is installed

How to Fix

  1. Check the visual condition of the sensor and wiring
  2. Measure resistance and voltage at the sensor
  3. Check the integrity of the wiring harness from the sensor to the ABS module
  4. Clean sensor connector contacts
  5. If necessary, replace the wheel speed sensor
  6. Test the operation of the system after repair

Related codes

Error C0654 by Vehicle Brand

FAQ

What does the C0654 code mean?

C0654 is an OBD-II diagnostic trouble code that indicates: Left Front Wheel Speed Sensor B Circuit High

What causes a C0654 error code?

The most common causes of C0654 include: Wheel speed sensor malfunction (left front, circuit B); Open or short circuit in wiring harness; Poor contact in the sensor connector; Mechanical damage to the sensor (for example, during suspension repairs).

How do I fix a C0654 diagnostic trouble code?

To fix C0654: Check the visual condition of the sensor and wiring. Measure resistance and voltage at the sensor. Check the integrity of the wiring harness from the sensor to the ABS module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0654?

Limited driving only, diagnose soon

How much does it cost to fix C0654?

The estimated repair cost for C0654 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat