C129F
Brake Pedal Position Sensor 4 Circuit Calibration
C129F is an OBD-II diagnostic trouble code meaning: Brake Pedal Position Sensor 4 Circuit Calibration. Common causes: brake pedal position sensor 4 malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- The ABS/ESP indicator on the dashboard is on
- Incorrect operation of the stabilization system
- Problems activating cruise control
- Difficulty braking
Causes
- Brake pedal position sensor 4 malfunction
- Open or shorted wiring harness
- Problems with contacts in connectors
- Malfunction of the ABS/ESP control unit
- Incorrect calibration after sensor replacement
How to Fix
- Check the integrity of the wiring harness and contacts
- Check the resistance of the brake pedal position sensor
- Calibrate the sensor using diagnostic equipment
- If necessary, replace the sensor or wiring harness
- Check and update the ABS/ESP control unit software
Related codes
FAQ
What does the C129F code mean?
C129F is an OBD-II diagnostic trouble code that indicates: Brake Pedal Position Sensor 4 Circuit Calibration
What causes a C129F error code?
The most common causes of C129F include: Brake pedal position sensor 4 malfunction; Open or shorted wiring harness; Problems with contacts in connectors; Malfunction of the ABS/ESP control unit.
How do I fix a C129F diagnostic trouble code?
To fix C129F: Check the integrity of the wiring harness and contacts. Check the resistance of the brake pedal position sensor. Calibrate the sensor using diagnostic equipment. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C129F?
Limited driving only, diagnose soon
How much does it cost to fix C129F?
The estimated repair cost for C129F is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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