U0191 low

Lost Communication With Television Control Module

What does U0191 mean?

The U0191 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Television Control Module. This is a low severity code.

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

  1. Check the entertainment system fuses

  2. Inspect the TV tuner module connector for corrosion

  3. Verify power and ground at the tuner module

  4. Check the TV antenna connections

  5. 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.

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