Lost Communication With Television Control Module
The U0191 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Television Control Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $100 - $400 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- In-vehicle television or video not functioning
- Entertainment display shows no video input
- Digital TV tuner inoperative
- Video entertainment error message displayed
- Rear seat video screens blank
Probable Causes (Ranked by Likelihood)
- Failed television or video tuner module Very High
- Damaged antenna cable for TV reception High
- Corroded video module connector Moderate
- Software fault in entertainment system Low
Step-by-Step Diagnostic Procedure
-
Check the entertainment system fuses
-
Inspect the TV tuner module connector for corrosion
-
Verify power and ground at the tuner module
-
Check the TV antenna connections
-
Try a system reset by disconnecting the battery
Frequently Asked Questions
Can I drive with code U0191?
Yes, completely safe to drive. Only the in-vehicle TV or video function is affected.
What causes U0191?
Typically a failed TV tuner module or damaged antenna cable. This feature is most common on luxury vehicles and minivans.
Is U0191 expensive to fix?
Usually $100 to $400. The TV tuner module is often a small unit that can be replaced without major disassembly.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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