Audio Remote-HFL Switch Does Not Work Properly (Touchpad Unit Buttons Work)

Diagnostic Procedure

• Audio remote-HFL Switch Does Not Work Properly (Touchpad Unit Buttons Work) 

Also Check for

• Most Bus Diagnostics Mode

  Refer to:

  Audio and Visual System Most Bus Diagnostics Mode (2019 2020 2021) 

  or

  Audio and Visual System Most Bus Diagnostics Mode (2022 2023) 

• Hard Key in the System Diagnostic Mode