C012B - High Pressure Accumulator Pressure Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

C012B Possible Causes

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

How do I fix code C012B

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.

Tech Notes

DTC C012B 01 High Pressure Accumulator Pressure Sensor Short to Battery
DTC C012B 06 High Pressure Accumulator Pressure Sensor Low Voltage/Open
DTC C012B 0F High Pressure Accumulator Pressure Sensor Signal Erratic

Cost of diagnosing the C012B code

Labor: 1.0

The cost of diagnosing the C012B 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.

Possible Symptoms

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

C012b 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 C012b - High Pressure Accumulator Pressure Sensor - AutoCodes.com

C012B More Information

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