OBD Guide

C0664

Left Rear Wheel Speed Sensor B Correlation

C0664 is an OBD-II diagnostic trouble code meaning: Left Rear Wheel Speed Sensor B Correlation. Common causes: damage to the wheel speed sensor, sensor contamination. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS or ESP indicator is on
  • Disabling the ABS or ESP system
  • Unstable operation of the stabilization system

Causes

  • Damage to the wheel speed sensor
  • Sensor contamination
  • Open or shorted wiring harness
  • Malfunction of the ABS/ESP control unit
  • Problems with the ring gear on the hub

How to Fix

  1. Check the visual condition of the sensor and ring gear
  2. Clean the sensor from dirt
  3. Check resistance and integrity of wiring harness
  4. Replace faulty speed sensor
  5. Check and replace ring gear if necessary
  6. Scan the system for other errors

Related codes

Error C0664 by Vehicle Brand

FAQ

What does the C0664 code mean?

C0664 is an OBD-II diagnostic trouble code that indicates: Left Rear Wheel Speed Sensor B Correlation

What causes a C0664 error code?

The most common causes of C0664 include: Damage to the wheel speed sensor; Sensor contamination; Open or shorted wiring harness; Malfunction of the ABS/ESP control unit.

How do I fix a C0664 diagnostic trouble code?

To fix C0664: Check the visual condition of the sensor and ring gear. Clean the sensor from dirt. Check resistance and integrity of wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0664?

Limited driving only, diagnose soon

How much does it cost to fix C0664?

The estimated repair cost for C0664 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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