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DTC DATABASE • OBD-II
U0155

Lost Communication With Instrument Panel Cluster

This page explains common reasons this code appears and what should be checked before parts are replaced.

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Common causes

What can trigger U0155?

  • Cluster power/ground issue
  • CAN wiring fault
  • Cluster internal fault
Typical symptoms

What you may notice

  • Cluster blank or intermittent
  • Multiple warning messages
  • Communication code in other modules

Do not diagnose from the code alone

The code alone does not identify the failed part. Live data, wiring checks and manufacturer-specific subcodes may be required before replacing components.

Full scanLive dataWiring checksSensor plausibilityECU / module communication
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