DTC B1779 Acura

HFL Switch (HFL TALK HFL BACK Buttons) Circuit Open Short

HFL Switch (HFL TALK HFL BACK Buttons) Circuit Open Short

Description

HFL Switch Open Short circuit. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A.

Cause and Solution

Faulty Cable Reel Subharness
Short to power
Open circuit between the switch, cable reel, and HandsFreeLink control unit
Open in the wire between the switch, cable reel, and the audio unit

Video Guide

Duration: PT4M7S | Uploaded: 2020-04-13

Diagnostic Info

  • DTC Code: B1779
  • Brand: Acura
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