DTC B1811 Acura

Power Seat Control Unit Lost Communication with MICU (DOORSW Message)

Power Seat Control Unit Lost Communication with MICU (DOORSW Message)

Description

Poor communication between the Power Seat Control Unit and the Gauge Control Module. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. If DTCs B1011, B1060, B1061, B1205, B1357, B1359, B1408, B1805, B1806, B1906, and B2160 are also indicated, Perform the gauge control module input test. If no addition codes are present, replace the Power Seat Control Unit.

Cause and Solution

Loose or poor connections between the Power Seat Control Unit and the Gauge Control Module
Blown fuse in the main under-hood fuse box
Blown fuse in the under-dash fuse relay box
Open or Short Condition between the Power Seat Control Unit and the Gauge Control Module
Faulty Door Switch
Faulty Power Seat Control Unit

Video Guide

Duration: PT4M42S | Uploaded: 2020-04-13

Diagnostic Info

  • DTC Code: B1811
  • Brand: Acura
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