DTC B2155 Acura

Drivers MPCS Unit Lost Communication with MICU (MICU Message)

Drivers MPCS Unit Lost Communication with MICU (MICU Message)

Description

Poor communication between the Drivers MPCS Unit and the MICU. (MICU malfunction) NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

Cause and Solution

Loose or poor connections between the drivers MPCS unit and the MICU
Open or Short to ground
Faulty MICU, replace the under-dash fuse relay box

Video Guide

Duration: PT4M10S | Uploaded: 2020-04-13

Diagnostic Info

  • DTC Code: B2155
  • Brand: Acura
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