Error code
OBD2 U0198
OBD2U0198
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With Telematic Control Module.
Severity
highCan drive, but may lose important features like remote diagnostics and emergency services.
Summary
U0198 indicates lost communication between the vehicle's diagnostic system and the telematics control module, which handles data transmission for services like remote diagnostics or emergency calls.
Common Causes
- Faulty wiring or connectors in the telematics control module circuit
- Malfunctioning telematics control module
Fixes
FAQ
How can I diagnose U0198?
Consult a professional mechanic or use diagnostic tools to check the telematics control module and its wiring.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'