U0197 – BMW DTC

BMW DTC U0197 – Lost Communication With Telephone Control Module

DTC U0197 meaning on BMW

The Diagnostic Trouble Code (DTC) U0197 for BMW indicates a communication error between the vehicle’s control module and the telephone control module. This error typically means that the control module is unable to establish communication with the telephone control module, leading to potential issues with the vehicle’s phone-related functions.

BMW DTC U0197 symptoms

Symptoms of the DTC U0197 on a BMW may include:

• Loss of phone connectivity
• Inability to make or receive calls through the vehicle’s system
• Error messages related to the telephone control module

BMW DTC U0197 causes

The DTC U0197 on a BMW can be caused by various factors, including:

• Defective telephone control module
• Wiring or connection issues between the control module and the telephone module
• Software glitches or malfunctions

BMW DTC U0197 seriousness

While the DTC U0197 may not directly affect the drivability of the vehicle, it can impact the convenience and functionality of the phone system within the BMW. It is recommended to address this issue to ensure proper communication between the control modules.

How to diagnose DTC U0197 on BMW

To diagnose the DTC U0197 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s system.
2. Inspect the wiring and connections between the control module and the telephone module for any visible damage or loose connections.
3. Check for any software updates or reprogramming that may be required for the control modules.

How to fix DTC U0197 on BMW

To fix the DTC U0197 on a BMW, you can try the following solutions:

1. Replace the faulty telephone control module with a new one.
2. Repair any damaged wiring or connections between the control modules.
3. Perform any necessary software updates or reprogramming to ensure proper communication.

How to erase DTC U0197 on BMW

To erase the DTC U0197 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. Once the issue has been addressed and fixed, you can reset the codes to ensure that the error does not reappear.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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