BMW DTC C1100 – FlexRay_High Circuit Low
DTC C1100 meaning on BMW
The DTC C1100 code on a BMW refers to a fault in the FlexRay communication network’s high circuit. The FlexRay system is a high-speed communication protocol used in modern vehicles for various control modules to communicate with each other.
BMW DTC C1100 symptoms
Symptoms of the DTC C1100 code on a BMW may include issues with the vehicle’s stability control system, ABS system, or other safety-related systems. The vehicle may experience erratic behavior, such as loss of traction control, ABS malfunctions, or other safety system failures.
BMW DTC C1100 causes
The DTC C1100 code on a BMW can be caused by various factors, including a faulty FlexRay communication module, damaged wiring or connectors in the FlexRay network, or a malfunctioning control module that is part of the communication network.
BMW DTC C1100 seriousness
The seriousness of the DTC C1100 code on a BMW depends on the extent of the communication network failure. Since this code is related to safety systems like stability control and ABS, it is crucial to address the issue promptly to ensure the vehicle’s safety features are functioning correctly.
How to diagnose DTC C1100 on BMW
To diagnose the DTC C1100 code on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s control modules. They would then inspect the FlexRay communication network for any visible damage to wiring or connectors. Additionally, testing the communication modules for proper functionality may be necessary.
How to fix DTC C1100 on BMW
Fixing the DTC C1100 code on a BMW may involve repairing or replacing damaged wiring or connectors in the FlexRay network, replacing a faulty communication module, or addressing any issues with the control modules that are part of the communication network. It is essential to follow manufacturer guidelines and use proper diagnostic tools during the repair process.
How to erase DTC C1100 on BMW
Once the underlying issue causing the DTC C1100 code on a BMW has been resolved, the code can be cleared using a diagnostic scanner. By accessing the vehicle’s onboard computer system, the mechanic can erase the fault code, resetting the system and turning off the check engine light.
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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