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Network / CANModerate⚠️ Professional Recommended

U0155

Lost Communication With Instrument Panel Cluster

A module (commonly the ECM or BCM) has lost CAN bus communication with the instrument panel cluster, so gauge and warning light data can no longer be exchanged.

SeverityModerate
CategoryNetwork / CAN
Est. Repair Cost$200–$800
Code TypeNetwork
DIY RepairProfessional

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Check cluster fuse and power
  • Step 2:Inspect CAN wiring to cluster
  • Step 3:Replace instrument cluster
💡 Pro Tip: Check the instrument cluster's power and ground circuits before assuming a wiring fault on the CAN bus itself — a cluster with no power will also show as a lost-communication code.

Repair Cost Estimate

Full Repair Estimate
$200–$800
DIY Possible?
PRO
Severity
Moderate

Frequently Asked Questions

What does OBD2 code U0155 mean?+
U0155 stands for Lost Communication With Instrument Panel Cluster. A module (commonly the ECM or BCM) has lost CAN bus communication with the instrument panel cluster, so gauge and warning light data can no longer be exchanged.
What causes code U0155?+
Failed instrument cluster; CAN bus wiring fault; Power loss to cluster
How do I fix code U0155?+
Check cluster fuse and power; Inspect CAN wiring to cluster; Replace instrument cluster
How much does it cost to fix U0155?+
Estimated repair cost for U0155 is $200–$800.
Is U0155 DIY-friendly?+
U0155 typically requires professional equipment and a qualified mechanic.

AI Diagnosis

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