C1221 CADILLAC - Left Front Wheel Speed Sensor Input Signal Is Zero
C1221 CADILLAC 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
How do I fix code C1221 CADILLAC?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 connector's pins.
How much do you know about cars?
Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge
Cost of diagnosing the C1221 CADILLAC code
Labor: 1.0The cost of diagnosing the C1221 CADILLAC 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.
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1221 CADILLAC 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.
More InformationNeed more information on how to fix the C1221 CADILLAC code?
Get Access to Factory Service Manuals
Need more help?Get the C1221 Cadillac code diagnosed by a professional: Find a repair shop in your area
CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the C1221 Cadillac code? Have you replaced any parts?
Any information is appreciated. Thanks