U0197 on Volvo
Lost Communication With Telephone Control Module
U0197 on Volvo vehicles indicates lost communication with telephone control module. Au7o has documented this code across 1 Volvo model — most commonly on XC90. A generic network code that sets when a module loses the expected data messages from the Telephone Control Module, which manages hands-free/Bluetooth phone functions. Set after the module fails to respond for a calibrated period.
Common Causes of U0197
- •Loss of power or ground to the telephone control module
- •Open, shorted, or corroded bus wiring
- •Loose or corroded connector
- •Blown fuse
- •Failed telephone control module
U0197 on Volvo by Model
Volvo XC90(1 issue)
- TCAM Telematics Module Failure Causing SOS, LTE, GPS, and App Connectivity Loss2023-2025
Owners of SPA-platform Volvos including the 2023-2025 XC90 continue to report TCAM-related failures where the vehicle loses cellular service, Volvo Cars app communication, GPS position, remote start/lock functions, and sometimes emergency-call features. In many cases the issue appears as an intermittent 'SOS service required' or connectivity warning, often after software glitches or low-voltage events. The problem is well documented in owner forums and dealer service visits, with some vehicles requiring module reset, software reload, or TCAM replacement.
Looking for U0197 on a different make?
View U0197 across all makes →Frequently Asked Questions
What does U0197 mean on Volvo?▼
U0197 stands for "Lost Communication With Telephone Control Module." A generic network code that sets when a module loses the expected data messages from the Telephone Control Module, which manages hands-free/Bluetooth phone functions. Set after the module fails to respond for a calibrated period. On Volvo specifically, this code is documented across 1 model.
What causes U0197 on Volvo vehicles?▼
Common causes on Volvo: Loss of power or ground to the telephone control module, Open, shorted, or corroded bus wiring, Loose or corroded connector, Blown fuse, Failed telephone control module. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0197 on a Volvo?▼
Repair costs vary widely depending on the root cause and specific Volvo model.
Which Volvo models have U0197 documented?▼
Au7o has documented U0197 on 1 Volvo model: XC90.