Network, generic

U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0155 says a listener no longer receives the instrument cluster, which shows speed and warnings and on many cars also produces chimes and turn-signal ticks. The cause is not always the cluster: on 2017 GM full-size trucks and SUVs several modules logged U0155 when the serial data gateway hung, so dead gauges came from the gateway (PIT5586G). The code can also trigger the MIL. Honda's 2021 Accord and HR-V and 2022 Odyssey lit it with U0155 after the evaporative leak check, when shutdown commands between units did not match; new engine software fixed it (21-021). Ford's 2020 Explorer showed MIL and wrench lamp with U0155 and U0100 due to gear shift module software (SSM 49218). FCA writes Cluster/CCN, Saab Instrument Cluster. U0423 covers invalid cluster data, U0156 the information center.

Likely causes

Cluster fuse, ground or connector behind the dash faulty
Gateway hangs and stops forwarding cluster messages (GM PIT5586G)
Software of another module causes false loss of communication (Honda 21-021, Ford SSM 49218)
Instrument cluster internally faulty

Symptoms

  • Gauges dead, frozen or sweeping
  • No chimes or turn-signal ticking
  • MIL on in some vehicles (Honda 2021-22, Ford Explorer 2020)
  • Several warning lamps and codes in many modules

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–1,200
Time0.3–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

What to check first

  1. Check cluster fuses
  2. Check network wiring

Parts involved

instrument clustercan bus wiring

Related codes

U0423U0156U0140U0146

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.