C012D GMC Code - Brake Boost Regulation Pressure Sensor
Quick Answer
The Electronic Brake Control Module (EBCM) uses input from the boost pressure sensor for more accurate control during brake and vehicle stability enhancement system event. Common causes include Faulty Brake Pressure Modulator, Brake Pressure Modulator harness is open or shorted, Brake Pressure Modulator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C012D GMC indicates Brake Boost Regulation Pressure Sensor.
- Common causes
- Common causes include Faulty Brake Pressure Modulator, Brake Pressure Modulator harness is open or shorted, Brake Pressure Modulator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C012D GMC Description
What are the Possible Causes of the DTC C012D GMC?
- Faulty Brake Pressure Modulator
- Brake Pressure Modulator harness is open or shorted
- Brake Pressure Modulator circuit poor electrical connection
How to Fix the DTC C012D GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
DTC C012D 01 Brake Boost Regulation Pressure Sensor Short to Battery
DTC C012D 06 Brake Boost Regulation Pressure Sensor Low Voltage/Open
DTC C012D 11 Brake Boost Regulation Pressure Sensor High Input
DTC C012D 5A Brake Boost Regulation Pressure Sensor Not Plausible
DTC C012D 0F Brake Boost Regulation Pressure Sensor Signal Erratic
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C012D GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C012D GMC Code
1. What does OBDII code C012D indicate on a GMC vehicle?
This code signifies a problem with the Brake Boost Regulation Pressure Sensor circuit, indicating the sensor is not functioning properly or the circuit has an issue.
2. What are common symptoms of the C012D code in a GMC?
Symptoms may include a brake pedal that feels spongy or hard, reduced braking performance, an illuminated check engine light, and possibly the activation of the ABS light.
3. What can cause the C012D code to appear on a GMC?
Potential causes include a faulty Brake Boost Regulation Pressure Sensor, wiring issues in the brake sensor circuit (such as shorts or open circuits), or problems with the brake booster itself.
4. How can I diagnose the C012D code on my GMC?
Diagnosis should begin with a visual inspection of the sensor and its connections. Use a multimeter to check for proper voltage and ground at the sensor. Scanning the vehicle with an OBDII scanner can help pinpoint if the issue is within the sensor or the circuit.
5. What steps should be taken to repair a GMC displaying the C012D code?
Repairs might involve replacing the Brake Boost Regulation Pressure Sensor, repairing any damaged wires or connectors in the circuit, or addressing issues with the brake booster if necessary.
6. Is it safe to drive a GMC with the C012D code?
While the vehicle may still be drivable, reduced braking performance can pose a safety risk. It’s advisable to address the issue promptly to ensure safety.
7. Will ignoring the C012D code lead to further vehicle damage?
Ignoring this code can lead to further brake system damage or complete brake failure, which could potentially result in an accident or more expensive repairs in the future.
8. How much does it typically cost to fix the C012D code on a GMC?
The cost can vary widely depending on the root cause. Sensor replacement might cost anywhere from $100 to $300, while more extensive electrical repairs or brake booster replacement could increase these costs significantly.
9. Can a faulty Brake Boost Regulation Pressure Sensor affect the fuel economy of a GMC?
Indirectly, yes. If the braking system is compromised, it may require more effort and fuel to stop the vehicle effectively, thus potentially reducing fuel economy.
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