U0157 low

Lost Communication With Information Center B

The U0157 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Information Center B. This is a low severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
moderate
Estimated cost
$100 - $800 (parts and labor)
Diagnose CAN Bus Issues
LAUNCH CRP123X Full System Scanner

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

  • Secondary display screen not working
  • Rear seat entertainment system not communicating
  • Center stack display blank or frozen
  • Climate control display not showing
  • Split-screen information not available

Probable Causes (Ranked by Likelihood)

  • Failed secondary display module Very High
  • Damaged CAN bus wiring to display B High
  • Display module software freeze Moderate
  • Corroded connector at secondary display module Moderate
  • Display screen hardware failure Low

Step-by-Step Diagnostic Procedure

  1. Scan for DTCs in body and infotainment modules

  2. Try a battery disconnect for 10 minutes to reset the display

  3. Check CAN bus wiring and connector at display module B

  4. Verify power supply and ground at the module

  5. Check for available software updates for the display system

Frequently Asked Questions

Can I drive with code U0157?

Yes. This code affects a secondary information display only. All driving-critical systems remain fully functional.

What is information center B?

Information center B is typically a secondary display screen in the vehicle. This could be the center stack touchscreen, a rear seat entertainment display, or a secondary driver information display.

Can a battery reset fix U0157?

Sometimes. Disconnecting the battery for 10 to 15 minutes can reset the display module and clear a software freeze. If the code returns after a battery reset, the module likely needs repair or replacement.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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