C066A
Right Rear Wheel Speed Sensor B Intermittent/Erratic
C066A is an OBD-II diagnostic trouble code meaning: Right Rear Wheel Speed Sensor B Intermittent/Erratic. Common causes: wheel speed sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- The ABS system may be temporarily disabled
- Incorrect speed readings on the speedometer
- Problems with the stabilization system
Causes
- Wheel speed sensor malfunction
- Wiring harness damage
- Oxidation or contamination of contacts
- Gear damage
- Problems with the sensor connector
How to Fix
- Check the condition of the sensor and its fastening
- Inspect the wiring harness for damage
- Clean the sensor and connector contacts
- Check the condition of the gear wheel
- Replace sensor if necessary
Related codes
Error C066A by Vehicle Brand
FAQ
What does the C066A code mean?
C066A is an OBD-II diagnostic trouble code that indicates: Right Rear Wheel Speed Sensor B Intermittent/Erratic
What causes a C066A error code?
The most common causes of C066A include: Wheel speed sensor malfunction; Wiring harness damage; Oxidation or contamination of contacts; Gear damage.
How do I fix a C066A diagnostic trouble code?
To fix C066A: Check the condition of the sensor and its fastening. Inspect the wiring harness for damage. Clean the sensor and connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C066A?
Limited driving only, diagnose soon
How much does it cost to fix C066A?
The estimated repair cost for C066A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat