Lost Communication With Information Center B
What does U0157 mean?
The U0157 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Information Center B. This is a low severity code.
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
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Scan for DTCs in body and infotainment modules
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Try a battery disconnect for 10 minutes to reset the display
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Check CAN bus wiring and connector at display module B
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Verify power supply and ground at the module
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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.