BMW DTC C109C – Brake System Control Module Control Time Too Long
DTC C109C meaning on BMW
DTC C109C on a BMW refers to the Brake System Control Module Control Time Too Long fault code. This code indicates that the control time for the brake system control module has exceeded the specified limit, signaling a potential issue with the module’s operation.
BMW DTC C109C symptoms
Symptoms of DTC C109C on a BMW may include:
- ABS warning light illuminated on the dashboard
- Brake system malfunctions or inconsistencies
- Decreased braking performance
BMW DTC C109C causes
The possible causes of DTC C109C on a BMW include:
- Faulty brake system control module
- Electrical issues within the brake system
- Software glitches or malfunctions
BMW DTC C109C seriousness
The seriousness of DTC C109C on a BMW should not be ignored, as it directly relates to the control and operation of the brake system. Driving with a malfunctioning brake system control module can compromise the vehicle’s safety and braking performance.
How to diagnose DTC C109C on BMW
To diagnose DTC C109C on a BMW, a comprehensive diagnostic scan tool capable of reading BMW-specific fault codes is required. The steps to diagnose the issue typically involve:
- Connecting the diagnostic tool to the vehicle’s OBD port
- Retrieving the fault codes, including DTC C109C
- Conducting a visual inspection of the brake system components
- Testing the brake system control module for proper function
How to fix DTC C109C on BMW
Fixing DTC C109C on a BMW may involve the following steps:
- Replacing the faulty brake system control module
- Repairing any electrical issues within the brake system
- Updating the software of the control module, if applicable
- Performing a thorough system check and test drive to ensure proper operation
How to erase DTC C109C on BMW
To erase DTC C109C on a BMW, follow these steps:
- Use a diagnostic scan tool to clear the fault codes
- Ensure that the underlying issue causing the fault code has been addressed
- Perform a final system check to confirm that the fault code has been successfully erased
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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