OBD Guide

C0665

Left Rear Wheel Speed Sensor B Incorrect Component Installed

C0665 is an OBD-II diagnostic trouble code meaning: Left Rear Wheel Speed Sensor B Incorrect Component Installed. Common causes: incorrect wheel speed sensor installed, damage to the sensor wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • The ABS/ESP indicator on the dashboard is on
  • Disabling the ABS system
  • Disabling the ESP system
  • Incorrect operation of cruise control

Causes

  • Incorrect wheel speed sensor installed
  • Damage to the sensor wiring harness
  • Problems with the sensor connector
  • Malfunction of the ABS/ESP control unit
  • Mechanical damage to the sensor

How to Fix

  1. Check the markings of the installed wheel speed sensor
  2. Inspect the wiring harness and sensor connector for damage.
  3. Compare sensor parameters with factory specifications
  4. If necessary, replace the sensor with the correct one
  5. Check the operation of the system after repair

Related codes

Error C0665 by Vehicle Brand

FAQ

What does the C0665 code mean?

C0665 is an OBD-II diagnostic trouble code that indicates: Left Rear Wheel Speed Sensor B Incorrect Component Installed

What causes a C0665 error code?

The most common causes of C0665 include: Incorrect wheel speed sensor installed; Damage to the sensor wiring harness; Problems with the sensor connector; Malfunction of the ABS/ESP control unit.

How do I fix a C0665 diagnostic trouble code?

To fix C0665: Check the markings of the installed wheel speed sensor. Inspect the wiring harness and sensor connector for damage.. Compare sensor parameters with factory specifications. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0665?

Limited driving only, diagnose soon

How much does it cost to fix C0665?

The estimated repair cost for C0665 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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