BMW DTC C1047 – Brake System Vacuum Pump Forced Shutdown
DTC C1047 meaning on BMW
DTC C1047 on a BMW refers to the Brake System Vacuum Pump Forced Shutdown. This diagnostic trouble code indicates that the vehicle’s brake system vacuum pump has been forcibly shut down due to a detected issue or fault.
BMW DTC C1047 symptoms
Symptoms of BMW DTC C1047 may include:
- Illuminated brake warning light on the dashboard
- Loss of power assistance in the braking system
- Increased pedal effort required to brake
BMW DTC C1047 causes
Common causes of BMW DTC C1047 include:
- Faulty brake system vacuum pump
- Vacuum leaks in the brake booster system
- Electrical issues in the vacuum pump circuit
BMW DTC C1047 seriousness
The seriousness of BMW DTC C1047 lies in the compromised braking performance of the vehicle. Loss of power assistance in the braking system can lead to increased stopping distances and potential safety hazards. It is crucial to address this issue promptly.
How to diagnose DTC C1047 on BMW
To diagnose BMW DTC C1047, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the brake system vacuum pump for proper operation
- Check for vacuum leaks in the brake booster system
- Test the electrical connections and components related to the vacuum pump
How to fix DTC C1047 on BMW
To fix BMW DTC C1047, the following steps may be taken:
- Replace the faulty brake system vacuum pump
- Repair any vacuum leaks in the brake booster system
- Address any electrical issues in the vacuum pump circuit
- Clear the fault codes and reset the system
How to erase DTC C1047 on BMW
To erase BMW DTC C1047, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. Once the underlying issue has been addressed and fixed, the fault codes can be cleared to reset the system and ensure proper operation.
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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