C1221 BUICK - Left Front Wheel Speed Sensor Input Signal Is Zero
C1221 BUICK Possible Causes
- Faulty Hub Assembly (Left Front Wheel Speed Sensor is part of hub assembly)
- Faulty Left Front Wheel Speed Sensor
- Left Front Wheel Speed Sensor harness is open or shorted
- Left Front Wheel Speed Sensor circuit poor electrical connection
First diagnose C1221 BUICK code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the C1221 BUICK code
Labor: 1.0The cost of diagnosing the C1221 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
C1221 BUICK Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1221 Buick DescriptionAs the wheel spins, the wheel speed sensor produces an AC signal. The Electronic Brake Control Module (EBCM) uses the frequency of the AC signal to calculate the wheel speed. The EBCM will set the OBDII code when the sensor is not to factory specifications.
C1221 BUICK More InformationNeed more information on how to fix the C1221 BUICK code?
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