U0197 on 2024-2026 Chevrolet Equinox — Lost Communication With Telephone Control Module
1 vehicles · 1 makes
Most Reported On
U0197 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2024-2026 Chevrolet Equinox.
Common Causes
Diagnostic Tools
This is a network/communication code. A basic engine-code reader will not show it — you need a scanner that reads all modules. These read U0197.
One caveat that applies to every scanner: only powertrain codes are standardised across manufacturers. Body, chassis and network coverage is "enhanced" diagnostics, and how deep it goes varies by make and model year — check your specific vehicle against the tool's coverage list before buying.
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Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
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- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does U0197 mean?
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.
What are the most common causes of U0197?
The most common causes of U0197 are: 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. The specific cause varies by vehicle.
How much does it cost to fix U0197?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by U0197?
Au7o has documented U0197 across 1 vehicle models from 1 manufacturers: Chevrolet.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.