C12FE Code - ABS Pump 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
- C12FE indicates ABS Pump 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 C12FE 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 C12FE?
- Faulty Brake Pressure Modulator
- Brake Pressure Modulator harness is open or shorted
- Brake Pressure Modulator circuit poor electrical connection
How to Fix the DTC C12FE?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C12FE 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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Need Help with the Code?
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Information for Specific Makes
- C12FE Buick — ABS Pump Pressure Loss
- C12FE Cadillac — ABS Pump Pressure Loss
- C12FE Chevrolet — ABS Pump Pressure Loss
- C12FE GMC — ABS Pump Pressure Loss
Frequently Asked Questions about C12FE Code
1. What does the OBDII code C12FE mean?
C12FE indicates a loss of pressure in the ABS pump, which is responsible for maintaining hydraulic pressure in the anti-lock braking system.
2. What are the common symptoms of code C12FE?
Symptoms include the ABS warning light turning on, reduced braking performance, and a possible pulsating brake pedal.
3. What causes the ABS pump to lose pressure and trigger code C12FE?
Common causes include a faulty ABS pump, leaks in the brake lines, worn seals, or a malfunctioning ABS control module.
4. Can I still drive my car with the C12FE code active?
Driving with this code is not recommended, as it can compromise braking performance and increase stopping distances.
5. How is code C12FE diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the ABS pump for damage, check for leaks in the brake system, and test the ABS control module.
6. What repairs are typically needed to fix code C12FE?
Repairs may involve replacing the ABS pump, fixing brake line leaks, replacing seals, or reprogramming or replacing the ABS control module.
7. How much does it cost to repair the issue causing code C12FE?
Repair costs vary but may range from $300 to $1,500, depending on whether the ABS pump or control module needs replacement.
8. Can a low brake fluid level cause code C12FE?
Yes, low brake fluid levels can lead to reduced hydraulic pressure in the ABS pump, potentially triggering this code.
9. How can I prevent code C12FE from occurring?
Regularly check brake fluid levels, inspect brake lines for leaks, and ensure the ABS system is maintained during routine vehicle servicing.
10. Will clearing the C12FE code fix the problem?
Clearing the code will turn off the warning light temporarily, but the underlying issue must be addressed to prevent the code from returning.
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