C129E GMC Code - Brake Pedal Position Sensor 4 Circuit High Input
Quick Answer
The Electronic Brake Control Module (EBCM) uses inputs from the electronic brake control brake pedal position sensor to determine when the brake is applied and how much force is used. 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
- C129E GMC indicates Brake Pedal Position Sensor 4 Circuit High Input.
- 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 C129E GMC Description
What are the Possible Causes of the DTC C129E GMC?
- Faulty Brake Pedal Position Sensor
- Brake Pedal Position Sensor harness is open or shorted
- Brake Pedal Position Sensor circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C129E 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C129E 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 C129E GMC Code
1. What are the common symptoms of OBDII code C129E in a GMC vehicle?
The common symptoms of OBDII code C129E in a GMC vehicle include issues with the brake pedal position sensor, such as erratic or non-responsive brake pedal behavior.
2. What does the OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input mean in a GMC vehicle?
The OBDII code C129E indicates that there is a high input detected in the circuit related to Brake Pedal Position Sensor 4 in a GMC vehicle.
3. What are the possible causes of OBDII code C129E in a GMC vehicle?
Possible causes of OBDII code C129E in a GMC vehicle include a faulty brake pedal position sensor, damaged wiring or connectors, or issues with the brake pedal position sensor circuit.
4. How can I diagnose the OBDII code C129E related to the Brake Pedal Position Sensor in my GMC vehicle?
To diagnose the OBDII code C129E related to the Brake Pedal Position Sensor in a GMC vehicle, you can use an OBDII scanner to read the trouble codes, inspect the brake pedal position sensor and its wiring, and perform a circuit test to identify the issue.
5. Can I still drive my GMC vehicle with OBDII code C129E present?
It is not recommended to drive your GMC vehicle with OBDII code C129E present, as it indicates a potential issue with the brake pedal position sensor that can affect braking performance and safety.
6. How do I repair OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input in my GMC vehicle?
To repair OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input in a GMC vehicle, you may need to replace the faulty brake pedal position sensor, repair damaged wiring or connectors, or reset the sensor calibration.
7. Is it possible to reset the OBDII code C129E in a GMC vehicle without fixing the underlying issue?
While you can clear the OBDII code C129E in a GMC vehicle using an OBDII scanner, it is important to address the underlying issue with the brake pedal position sensor to prevent the code from reoccurring.
8. Can a DIY enthusiast fix the OBDII code C129E related to the Brake Pedal Position Sensor in a GMC vehicle?
Depending on the level of expertise and access to tools, a DIY enthusiast may be able to fix the OBDII code C129E related to the Brake Pedal Position Sensor in a GMC vehicle by following repair guides and tutorials.
9. How much does it typically cost to repair OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input in a GMC vehicle?
The cost to repair OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input in a GMC vehicle can vary depending on the extent of the issue, the parts needed for replacement, and whether you choose to do the repair yourself or seek professional help.
10. Will OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input cause the GMC vehicle to fail an emissions test?
OBDII code C129E Brake Pedal Position Sensor 4 Circuit High Input may not directly cause the GMC vehicle to fail an emissions test, but it is still important to address the issue promptly to ensure the vehicle's overall performance and safety.
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