C0221
Right Front Speed Sensor or Circuit Open
C0221 is an OBD-II diagnostic trouble code meaning: Right Front Speed Sensor or Circuit Open. Common causes: broken sensor wires, short circuit in the circuit. Estimated repair cost: $56–167.
Symptoms
- The ABS/ESP lamp on the dashboard is on
- Disabling the ABS system
- Problems with the stability control system
- Incorrect speedometer readings (in some models)
Causes
- Broken sensor wires
- Short circuit in the circuit
- Wheel speed sensor malfunction
- Wiring harness damage
- Corrosion of contacts in the connector
- ABS module malfunction
How to Fix
- Visual inspection of the sensor wires and connector
- Checking the sensor resistance (should be between 800-2000 Ohms)
- Checking the continuity of the circuit from the sensor to the ABS unit
- Checking the sensor signal with an oscilloscope
- Replace the sensor if necessary
- Repair or replace the wiring harness if damage is found
Related codes
Error C0221 by Vehicle Brand
FAQ
What does the C0221 code mean?
C0221 is an OBD-II diagnostic trouble code that indicates: Right Front Speed Sensor or Circuit Open
What causes a C0221 error code?
The most common causes of C0221 include: Broken sensor wires; Short circuit in the circuit; Wheel speed sensor malfunction; Wiring harness damage.
How do I fix a C0221 diagnostic trouble code?
To fix C0221: Visual inspection of the sensor wires and connector. Checking the sensor resistance (should be between 800-2000 Ohms). Checking the continuity of the circuit from the sensor to the ABS unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0221?
Limited driving only, diagnose soon
How much does it cost to fix C0221?
The estimated repair cost for C0221 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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