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Code result

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

Moderate severity

What it means

CAN messages from or to the instrument cluster are missing. The cluster is the user-facing interface — speedometer, tachometer, warning lamps, fuel level, odometer — so failure is immediately visible. On some cars warning lamps from other modules can no longer illuminate either.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Cluster unpowered or fuse blown

    high

    One of the most commonly reported causes for this code — check this first.

  • Cluster internal failure (common on aged TFTs)

    medium

    A plausible cause — test and verify before replacing parts.

  • Gateway module routing CAN messages incorrectly

    low

    Less common, but worth ruling out after the more likely causes.

Related help

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