BMW DTC C1090 – Internal DSC Control Module Valve Coil ‘G’ Circuit Electrical
DTC C1090 meaning on BMW
DTC C1090 on a BMW refers to an Internal DSC (Dynamic Stability Control) Control Module Valve Coil ‘G’ Circuit Electrical fault. This fault code indicates an issue with the electrical circuit related to the valve coil ‘G’ within the DSC control module.
BMW DTC C1090 symptoms
Symptoms of DTC C1090 on a BMW may include:
- ABS (Anti-lock Braking System) warning light illuminated on the dashboard
- Traction control system malfunction
- Loss of stability control during driving
BMW DTC C1090 causes
Possible causes of DTC C1090 on a BMW include:
- Faulty DSC control module
- Wiring or connection issues in the valve coil ‘G’ circuit
- Defective valve coil ‘G’
BMW DTC C1090 seriousness
DTC C1090 should be addressed promptly as it can affect the proper functioning of the vehicle’s stability control system. Driving with this fault unresolved may compromise safety and handling, especially in adverse driving conditions.
How to diagnose DTC C1090 on BMW
To diagnose DTC C1090 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the DSC control module
- Inspect the wiring and connections in the valve coil ‘G’ circuit for any damage or corrosion
- Test the valve coil ‘G’ for proper functionality
- Check the DSC control module for any internal faults
How to fix DTC C1090 on BMW
To fix DTC C1090 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connections in the valve coil ‘G’ circuit
- Replace the faulty valve coil ‘G’ if necessary
- If the issue lies with the DSC control module, it may need to be repaired or replaced
How to erase DTC C1090 on BMW
To erase DTC C1090 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made, the codes can be reset to see if the issue has been resolved. It is important to ensure that the underlying cause of the fault has been addressed before clearing the codes.
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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