C12B8 GMC - ABS High Pressure Accumulator Pressure Sensor Erratic

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

  • Faulty Brake Pressure Modulator
  • Brake Pressure Modulator harness is open or shorted
  • Brake Pressure Modulator circuit poor electrical connection

Possible symptoms

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

C12b8 Gmc Description

The high pressure accumulator is attached to the brake pressure modulator and provides up to 18, 000 kPa (2, 600 psi) for use when applying the brakes. The Electronic Brake Control Module (EBCM) uses input from the high pressure accumulator sensor for more accurate control during braking and vehicle stability enhancement system event.
OBDII Code C12b8 Gmc - ABS High Pressure Accumulator Pressure Sensor Erratic - AutoCodes.com

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C12B8 GMC Comments

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