BMW DTC C1068 – Brake Pedal Position Sensor Voltage Low
DTC C1068 meaning on BMW
DTC C1068 on a BMW indicates a low voltage condition detected in the brake pedal position sensor circuit. The brake pedal position sensor is responsible for sending signals to the vehicle’s electronic control unit (ECU) regarding the position of the brake pedal. When the voltage from the sensor falls below the specified range, the ECU triggers the C1068 fault code.
BMW DTC C1068 symptoms
Symptoms of DTC C1068 on a BMW may include:
- Malfunction indicator lamp (MIL) or check engine light illuminated on the dashboard
- Brake warning light may be illuminated
- Brake pedal may feel abnormal or unresponsive
- Loss of brake assist functionality
BMW DTC C1068 causes
The low voltage condition in the brake pedal position sensor circuit that triggers DTC C1068 on a BMW can be caused by various factors, including:
- Faulty brake pedal position sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or poor connections in the sensor circuit
- ECU software or hardware problems
BMW DTC C1068 seriousness
DTC C1068 should be addressed promptly as it relates to the brake pedal position sensor, which is a critical component for proper brake system operation. Ignoring this fault code can lead to potential safety hazards due to compromised brake performance.
How to diagnose DTC C1068 on BMW
To diagnose DTC C1068 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the brake pedal position sensor and its wiring for any visible damage or corrosion
- Test the sensor’s voltage output using a multimeter to verify if it falls below the specified range
- Check for any loose or disconnected connectors in the sensor circuit
How to fix DTC C1068 on BMW
To fix DTC C1068 on a BMW, you can consider the following actions:
- Replace the faulty brake pedal position sensor if it is determined to be the cause of the low voltage condition
- Repair or replace any damaged wiring or connectors in the sensor circuit
- Clean any corrosion from the sensor connections and ensure proper contact
- If necessary, update the ECU software to address any software-related issues
How to erase DTC C1068 on BMW
To erase DTC C1068 on a BMW after the issue has been resolved, you can use a diagnostic scanner to clear the fault code from the ECU’s memory. This process will reset the MIL or check engine light and allow you to verify if the repair was successful.
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
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