OBD Guide

C066B

Right Rear Wheel Speed Sensor B Correlation

C066B is an OBD-II diagnostic trouble code meaning: Right 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/ESP indicator is on
  • Reduced ABS performance
  • Disabling the stabilization system

Causes

  • Damage to the wheel speed sensor
  • Sensor contamination
  • Broken or damaged wiring harness
  • Problems with gear wheel rotor
  • ABS control unit malfunction

How to Fix

  1. Check the condition of the wheel speed sensors
  2. Clean the sensors from dirt
  3. Check the integrity of the wiring harness
  4. Replace damaged sensor if necessary
  5. Check the gear rotor for damage
  6. Scan the system for other errors

Related codes

Error C066B by Vehicle Brand

FAQ

What does the C066B code mean?

C066B is an OBD-II diagnostic trouble code that indicates: Right Rear Wheel Speed Sensor B Correlation

What causes a C066B error code?

The most common causes of C066B include: Damage to the wheel speed sensor; Sensor contamination; Broken or damaged wiring harness; Problems with gear wheel rotor.

How do I fix a C066B diagnostic trouble code?

To fix C066B: Check the condition of the wheel speed sensors. Clean the sensors from dirt. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C066B?

Limited driving only, diagnose soon

How much does it cost to fix C066B?

The estimated repair cost for C066B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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