BMW DTC U0198 – Lost Communication With Telematic Control Module
DTC U0198 meaning on BMW
DTC U0198 on a BMW indicates a ¨Lost Communication With Telematic Control Module¨ fault. This means that the vehicle’s onboard diagnostic system has detected a communication issue with the telematics control module, which is responsible for functions such as GPS navigation, emergency calling, and remote vehicle diagnostics.
BMW DTC U0198 symptoms
Symptoms of a DTC U0198 on a BMW may include:
- Loss of telematics system functionality
- GPS navigation not working
- Inability to make emergency calls
- Error messages related to the telematics system
BMW DTC U0198 causes
Common causes of a DTC U0198 on a BMW include:
- Faulty telematics control module
- Wiring or connection issues
- Software glitches
- Electrical problems
BMW DTC U0198 seriousness
While a DTC U0198 may not directly affect the drivability of the vehicle, it can impact the functionality of important telematics features. Loss of communication with the telematics control module can hinder emergency response capabilities and navigation services, making it a serious issue that should be addressed promptly.
How to diagnose DTC U0198 on BMW
To diagnose a DTC U0198 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the wiring and connections to the telematics control module
- Check for any software updates or glitches
- Test the telematics control module for functionality
How to fix DTC U0198 on BMW
To fix a DTC U0198 on a BMW, the following steps may be taken:
- Repair or replace any faulty wiring or connections
- Update the software of the telematics control module
- Replace the telematics control module if necessary
- Clear the fault code and reset the system
How to erase DTC U0198 on BMW
To erase a DTC U0198 on a BMW, follow these steps:
- Use a diagnostic scanner to clear the fault code
- Ensure that the underlying issue causing the fault code has been resolved
- Perform a test drive to confirm that the fault code does not return
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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