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HFL Switch Test

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the audio remote, HFL-navigation voice control switch or the audio remote-HFL switch (see STEERING WHEEL DISASSEMBLY/REASSEMBLY )
    Fig 1: Identifying Audio Remote-Hfl Switch Connector
    G05989996Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Measure the resistance between terminals No 9 and No 11 in each switch position according to the table

    HFL Switch (with navigation) 

    HFL SWITCH RESISTANCE SPECIFICATION (WITH NAVIGATION)

    Position Resistance
    No button pressed About 10 k Ω
    PICK-UP button pressed About 47 Ω
    HANG-up button pressed About 220 Ω

    HFL Switch (without navigation) 

    HFL SWITCH RESISTANCE SPECIFICATION (WITHOUT NAVIGATION)

    Position Resistance
    No button pressed About 1 k Ω
    HFL TALK button pressed About 46 Ω
    HFL BACK button pressed About 185 Ω