LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2019 >> MDX Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security System / Keyless Entry System - Testing & Troubleshooting (Except Hybrid) >> Test >> HomeLink Switch Test >> Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

HomeLink Switch Test: Test

  1. Roof Console - Remove - Refer to: Headliner Removal and Installation, or Headliner Removal and Installation (2017 2018 2019 2020)
  2. HomeLink Switch - Test
    NOTE: The HomeLink switch is built into the roof console module (A).

    1. Check the switch for continuity and the LEDs for illumination according to the table.

    • When an LED is located between terminals, check if the LED lights up by connecting power and ground to the LED.
    • Note this important operating characteristic; diode bias causes a diode to fully conduct electricity in one direction (forward), while not at all in the opposite direction (reverse).
    GHH326615Courtesy of HONDA, U.S.A., INC.
    GHH326616Courtesy of HONDA, U.S.A., INC.

    2. If the result is not as specified, the HomeLink switch is faulty; replace the roof console module .

  3. All Removed Parts - Install
    1. Install the parts in the reverse order of removal.