C012E Chevrolet Code - Hydraulic Brake Boost Pressure Loss
Quick Answer
The boost pressure valve is internal to the brake pressure modulator. 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
- C012E Chevrolet indicates Hydraulic Brake Boost Pressure Loss.
- 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 C012E Chevrolet Description
When a boost fault condition is detected, the boost control will continue applying as much pressure as possible until boost pressure is no longer available.
What are the Possible Causes of the DTC C012E Chevrolet?
- Faulty Brake Pressure Modulator
- Brake Pressure Modulator harness is open or shorted
- Brake Pressure Modulator circuit poor electrical connection
How to Fix the DTC C012E Chevrolet?
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 C012E 12 Hydraulic Brake Boost Pressure Loss Low Input
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C012E Chevrolet 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 C012E Chevrolet Code
1. What does the OBDII code C012E mean on a Chevrolet?
The C012E code indicates "Hydraulic Brake Boost Pressure Loss," meaning the system has detected a problem with the hydraulic brake assist pressure.
2. What are the common symptoms of code C012E on a Chevrolet?
Common symptoms include reduced braking performance, a hard brake pedal, ABS or brake warning lights on the dashboard, and increased stopping distance.
3. What causes the C012E code to appear on a Chevrolet?
Causes may include low hydraulic fluid levels, a faulty brake pressure sensor, leaks in the hydraulic brake system, or a malfunctioning brake booster.
4. Can I drive my Chevrolet with the C012E code active?
It is not recommended to drive with this code active, as it could impair braking performance and increase the risk of an accident.
5. How do I diagnose the C012E code on my Chevrolet?
Diagnosis involves checking hydraulic fluid levels, inspecting for leaks in the brake system, testing the brake pressure sensor, and scanning for additional ABS-related codes.
6. What repairs can fix the C012E code on a Chevrolet?
Repairs may include refilling or replacing hydraulic brake fluid, repairing leaks, replacing the brake pressure sensor, or servicing the hydraulic brake booster.
7. How much does it cost to fix the C012E code on a Chevrolet?
Repair costs vary but can range from $100 for simple fixes like fluid top-ups to $500 or more for sensor or booster replacements.
8. Can low hydraulic fluid cause the C012E code on a Chevrolet?
Yes, low hydraulic fluid is a common cause of this code, as it can prevent the brake system from maintaining proper pressure.
9. How do I reset the C012E code on my Chevrolet after repairs?
Use an OBDII scanner to clear the code after verifying that all issues have been resolved and the brake system is functioning properly.
10. Is the C012E code related to the ABS system on a Chevrolet?
Yes, the code is often associated with the ABS because both systems rely on proper hydraulic pressure for optimal braking performance.
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