C109F – BMW DTC

BMW DTC C109F – Brake System Control Module Hydraulic Pump

DTC C109F meaning on BMW

DTC C109F on a BMW refers to a fault with the Brake System Control Module Hydraulic Pump. This diagnostic trouble code indicates an issue with the hydraulic pump within the brake system control module.

BMW DTC C109F symptoms

Symptoms of BMW DTC C109F may include:

  • ABS warning light illuminated on the dashboard
  • Brake system warning light on
  • Decreased braking performance
  • Strange noises coming from the hydraulic pump

BMW DTC C109F causes

Common causes of BMW DTC C109F include:

  • Faulty hydraulic pump motor
  • Electrical issues within the brake system control module
  • Hydraulic pump relay malfunction
  • Wiring problems

BMW DTC C109F seriousness

The seriousness of BMW DTC C109F lies in the fact that it affects the proper functioning of the brake system. Ignoring this fault can lead to compromised braking performance and potentially unsafe driving conditions.

How to diagnose DTC C109F on BMW

To diagnose DTC C109F on a BMW, you can:

  • Use a diagnostic scanner to retrieve the fault codes
  • Inspect the hydraulic pump and related components for any visible damage
  • Check the wiring and connections for any signs of wear or corrosion

How to fix DTC C109F on BMW

To fix DTC C109F on a BMW, you may need to:

  • Replace the faulty hydraulic pump motor
  • Repair any electrical issues within the brake system control module
  • Replace the hydraulic pump relay if necessary
  • Ensure all wiring and connections are secure and functioning properly

How to erase DTC C109F on BMW

To erase DTC C109F on a BMW, you can:

  • Use a diagnostic scanner to clear the fault codes
  • After fixing the underlying issue, reset the system by clearing the fault codes
  • Ensure that the ABS and brake system warning lights are no longer illuminated