OBDII Code List

C12B1 BUICK - ABS Master Cylinder Pressure Sensor and Brake Pedal Position Sensor Not Plausible

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

C12B1 BUICK Possible Causes

  • Faulty Brake Pedal Position Sensor
  • Brake Pedal Position Sensor harness is open or shorted
  • Brake Pedal Position Sensor circuit poor electrical connection
  • Faulty Electronic Brake Control Module (EBCM)

First diagnose C12B1 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 C12B1 BUICK code

    Labor: 1.0

    The cost of diagnosing the C12B1 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.

C12B1 BUICK Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C12b1 Buick Description

The Electronic Brake Control Module (EBCM) uses inputs from the electronic brake control brake pedal position sensor to determine when the brake is applied and how much force is used. The electronic brake control module monitors when the driver's foot is on the brake and locks the offset. The offset is locked when 3 out of the 4 inputs indicate the brake pedal is applied. The 4 inputs are brake pedal travel 1, brake pedal travel 2, master cylinder pressure sensor, and the brake pedal position sensor. These inputs are used to determine the driver's braking intent which is used to the control amount of pressure applied to the wheels.
OBDII Code C12b1 Buick - ABS Master Cylinder Pressure Sensor and Brake Pedal Position Sensor Not Plausible -

C12B1 BUICK More Information

Need more information on how to fix the C12B1 BUICK code?
Get Access to Factory Service Manuals

Need more help?

Get the C12b1 Buick code diagnosed by a professional: Find a repair shop in your area

Related Information

C12B1 BUICK Comments

Help us improve 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 C12b1 Buick code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧