BMW DTC C1085 – Internal DSC Control Module FlexRay Controller Error
DTC C1085 meaning on BMW
DTC C1085 is an OBD-II diagnostic trouble code that indicates an Internal DSC (Dynamic Stability Control) Control Module FlexRay Controller Error on BMW vehicles. The DSC system is responsible for helping to maintain vehicle stability and traction control by monitoring various sensors and adjusting braking and engine power as needed.
BMW DTC C1085 symptoms
Symptoms of the DTC C1085 Internal DSC Control Module FlexRay Controller Error may include:
- ABS (Anti-lock Braking System) warning light illuminated
- DSC warning light illuminated
- Traction control system may be disabled
- Decreased stability and traction control
BMW DTC C1085 causes
The DTC C1085 error code can be triggered by various factors, including:
- Internal failure within the DSC control module
- FlexRay communication bus issues
- Wiring or connection problems
BMW DTC C1085 seriousness
The DTC C1085 error should be addressed promptly as it can affect the vehicle’s stability and traction control systems, potentially compromising safety while driving.
How to diagnose DTC C1085 on BMW
To diagnose the DTC C1085 error on a BMW, a diagnostic scan tool capable of reading ABS/DSC system codes is required. The following steps can help in diagnosing the issue:
- Connect the diagnostic scan tool to the vehicle’s OBD-II port
- Read and record the DTC codes present, including C1085
- Perform a visual inspection of the DSC control module, wiring, and connections
- Check for any other related ABS/DSC system codes
How to fix DTC C1085 on BMW
Fixing the DTC C1085 Internal DSC Control Module FlexRay Controller Error on a BMW may involve the following steps:
- Inspect and repair any damaged wiring or connections related to the DSC system
- Reset the DSC system by performing a calibration or initialization procedure
- If the issue persists, consider replacing the DSC control module
- Clear the DTC codes and test drive the vehicle to ensure the problem is resolved
How to erase DTC C1085 on BMW
To erase the DTC C1085 error code on a BMW, follow these steps:
- Use a diagnostic scan tool to access the ABS/DSC system
- Select the option to clear DTC codes
- Confirm the action and wait for the scan tool to clear the codes
- Turn off the ignition and restart the vehicle to ensure the error code is no longer present
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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