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P1B12 BUICK

P1B12 BUICK - Driver Intended Brake Torque Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Brake Pedal Position Sensor
  • Brake Pedal Position Sensor harness is open or shorted
  • Brake Pedal Position Sensor circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1b12 Buick Description

The Electronic Brake Control Module (EBCM) monitors the brake pedal position sensor in order to provide emission related brake pedal position information to the Engine Control Module (ECM). The EBCM sends the information, via the serial data circuit, to the ECM in a continuously repeating series of 16 rolling counts, with each count assigned a value. When the ECM determines that too many of the counts have an incorrect value, the ECM sets DTC P1B12.
OBDII Code P1b12 Buick - Driver Intended Brake Torque Fault - AutoCodes.com

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