BMW DTC C0042 – Brake Pedal Position Sensor ‘Circuit A’
DTC C0042 meaning on BMW
DTC C0042 on a BMW refers to a fault with the Brake Pedal Position Sensor ‘Circuit A’. This diagnostic trouble code indicates that there is an issue with the electrical circuit related to the brake pedal position sensor.
BMW DTC C0042 symptoms
Symptoms of DTC C0042 on a BMW may include:
- Brake warning light illuminated on the dashboard
- ABS warning light activated
- Brake pedal may feel abnormal or unresponsive
BMW DTC C0042 causes
Common causes of DTC C0042 on a BMW include:
- Faulty brake pedal position sensor
- Wiring or connector issues in the circuit
- Corrosion or damage to sensor components
BMW DTC C0042 seriousness
DTC C0042 should be taken seriously as it relates to the brake pedal position sensor, which is a critical component for the proper functioning of the vehicle’s braking system. Ignoring this fault can lead to potential safety hazards and compromised braking performance.
How to diagnose DTC C0042 on BMW
To diagnose DTC C0042 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the brake pedal position sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage output
- Check for any loose connections or corrosion in the circuit
How to fix DTC C0042 on BMW
To fix DTC C0042 on a BMW, you can try the following:
- Replace the faulty brake pedal position sensor
- Repair or replace any damaged wiring or connectors in the circuit
- Clean any corrosion from sensor components
- Clear the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC C0042 on BMW
To erase DTC C0042 on a BMW, you can use a diagnostic scanner to clear the fault code from the vehicle’s system. Once the repair has been completed and the issue resolved, clearing the code will reset the system and 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.