BMW DTC C056D – Brake Pedal Position Sensor Supply Voltage Circuit Low
DTC C056D meaning on BMW
DTC C056D on a BMW refers to a fault with the Brake Pedal Position Sensor Supply Voltage Circuit being detected as low. The Brake Pedal Position Sensor is responsible for monitoring the position of the brake pedal and providing feedback to the vehicle’s electronic control unit (ECU) to assist in various braking functions.
BMW DTC C056D symptoms
Symptoms of DTC C056D on a BMW may include:
- Malfunction indicator light (MIL) or check engine light illuminated on the dashboard
- Brake system warning light may be illuminated
- Issues with brake pedal response or braking performance
BMW DTC C056D causes
Common causes of DTC C056D on a BMW include:
- Faulty brake pedal position sensor
- Wiring or connection issues in the brake pedal position sensor circuit
- Low voltage supply to the brake pedal position sensor
BMW DTC C056D seriousness
The seriousness of DTC C056D on a BMW should not be ignored as it can affect the proper functioning of the brake system. It is important to address this issue promptly to ensure the safety and performance of the vehicle.
How to diagnose DTC C056D on BMW
To diagnose DTC C056D on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECU
- Inspect the brake pedal position sensor and its wiring for any visible damage or loose connections
- Check the voltage supply to the brake pedal position sensor using a multimeter
How to fix DTC C056D on BMW
To fix DTC C056D on a BMW, you can try the following:
- Replace the faulty brake pedal position sensor
- Repair any damaged wiring or connections in the sensor circuit
- Ensure proper voltage supply to the brake pedal position sensor
How to erase DTC C056D on BMW
To erase DTC C056D on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECU. Once the issue has been addressed and fixed, you can reset the codes to turn off the warning lights on the dashboard.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.