DTC B1843 Acura

Power Seat Control Unit Lost Communication with Power Tilt Telescopic Steering Control Unit (UART line)

Power Seat Control Unit Lost Communication with Power Tilt Telescopic Steering Control Unit (UART line)

Description

Poor communication between Power Seat Control Unit and the Power Tilt Telescopic Steering Control Unit. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

Cause and Solution

Check for loose or poor connections
Blown fuse in the main under-hood fuse box
Blown fuse in the under-dash fuse relay box
Open condition between Power Seat Control Unit and the Power Tilt Telescopic Steering Control Unit
Faulty Power Seat Control Unit

Video Guide

Duration: PT4M17S | Uploaded: 2020-04-13

Diagnostic Info

  • DTC Code: B1843
  • Brand: Acura
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