1. Faulty ABS Control Module (ABS ECU):
- The ABS control module (also known as the ABS ECU) is responsible for managing the ABS system. If it's malfunctioning, it can lead to ABS faults even after replacing all sensors.
2. Electrical Wiring Issues:
- Check for any damaged, corroded, or loose wiring connections related to the ABS system. Faulty wiring can disrupt communication between sensors and the ABS control module.
3. Wheel Bearing Issues:
- Worn or damaged wheel bearings can affect the ABS system's ability to accurately detect wheel speed. Check for any play or noise in the wheel bearings.
4. Brake System Problems:
- Check for any issues with the brake system, such as low brake fluid level, worn-out brake pads or rotors, or problems with the brake calipers. These issues can affect the ABS system's performance.
5. Software or Calibration Problems:
- In some cases, software issues or incorrect calibration of the ABS system may cause faults. Consult with a professional mechanic or visit an authorized Peugeot service center to ensure proper calibration.
Recommendation:
Considering that you have already replaced all the sensors, it's important to have a professional mechanic or an auto electrician diagnose the issue. They can use specialized diagnostic tools to identify the exact source of the ABS fault and provide an accurate solution.
