Network
generic / SAE
U0198
Lost Communication with Telematic Control Module
The vehicle has lost the telematics module (eCall / Connected Services / TCU). Emergency call, remote services and over-the-air features are unavailable until the module is back online.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 98
Possible causes
- TCU unpowered or backup battery dead high
- Mobile antenna disconnected low
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 100–1200 €
- Estimated time: 0.5–3 h
- Component: telematics module
- Component: can bus wiring
Sources
References
sae:J2012