U0197

Lost Communication With Telephone Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Hands-free system does not work
Lost connection with mobile device via Bluetooth
Error on the multimedia system display
Voice commands don't work
Loss of sound from speakers during phone calls

Causes

Broken or damaged wires in the communication circuit
Phone control module malfunction
Problems with the CAN bus
Module software failures
Poor contact in connectors

How to Fix

Check the integrity of the wiring harness to the telephone module
Inspect connectors for oxidation or damage
Carry out CAN bus diagnostics
Reboot the module (disconnect and reconnect the battery)
Update multimedia system software
If necessary, replace the telephone control module

Related codes

U0196 U0198 U0155