C12E5 Buick Code - Brake Pedal Position Sensor Reference Circuit
Quick Answer
The Electronic Brake Control Module (EBCM) monitors the Brake Pedal Position Sensor. Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor 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
- C12E5 Buick indicates Brake Pedal Position Sensor Reference Circuit.
- Common causes
- Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor 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 C12E5 Buick Description
What are the Possible Causes of the DTC C12E5 Buick?
- Faulty Brake Pedal Position Sensor
- Brake Pedal Position Sensor harness is open or shorted
- Brake Pedal Position Sensor circuit poor electrical connection
How to Fix the DTC C12E5 Buick?
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 C12E5 Buick 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 C12E5 Buick Code
1. What does the OBDII code C12E5 mean for a Buick?
C12E5 indicates an issue with the Brake Pedal Position Sensor Reference Circuit, which monitors the position of the brake pedal for proper braking and system operation.
2. What are common symptoms of the C12E5 code in a Buick?
Symptoms may include the brake warning light illuminating, ABS or traction control becoming disabled, or inconsistent brake pedal feel.
3. What causes the C12E5 code in a Buick?
Common causes include a faulty brake pedal position sensor, damaged wiring or connectors in the reference circuit, or a malfunctioning ABS control module.
4. Can I drive my Buick with the C12E5 code active?
While the vehicle may still be drivable, safety features like ABS and traction control might not function properly, so it’s best to address the issue promptly.
5. How is the C12E5 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the brake pedal position sensor and related wiring, and test the sensor's voltage and resistance for abnormalities.
6. How can I fix the C12E5 code on my Buick?
Potential fixes include replacing the brake pedal position sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ABS control module if required.
7. Is the C12E5 code specific to Buick vehicles?
No, the code can appear on other vehicles, but the specific diagnostics and repair steps may vary depending on the make and model.
8. How much does it cost to repair the C12E5 code on a Buick?
Repair costs can range from $100 to $300 for a new brake pedal position sensor, plus labor. Wiring repairs or ABS module replacement could increase the cost significantly.
9. Can a faulty brake pedal position sensor cause other issues?
Yes, it can lead to improper functioning of the ABS, traction control, or cruise control systems, potentially affecting vehicle safety.
10. Do I need to clear the C12E5 code after repairs?
Yes, after completing repairs, clear the code using an OBDII scan tool and test drive the vehicle to ensure the issue is resolved.
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