2012 Acura TL BaseFACTORY OEM SERVICE PROCEDURE

Engine Start/Stop Switch Test/Replacement

  1. Remove the driver's center trim (see DASHBOARD CENTER TRIM REMOVAL/INSTALLATION ).
  2. Disconnect the 10P connector (A) from the engine start/stop switch (B).
    Fig 1: Identifying 10P Connector And Engine Start/Stop Switch
    G08067810Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Remove the two screws, and the engine start/stop switch.
  4. Check for continuity between the terminals in each switch position according to the table.
    NOTE:
    • Make sure the correct test lead (+ or -) is placed on the terminal.
    • When checking for continuity across the diode, use the diode setting on the digital volt/ohm meter to check the diode bias.
    • Be careful of this characteristic; a diode is one that conducts fully in one direction (forward) and not at all in the opposite direction (reverse).
      Fig 2: Engine Start/Stop Switch Continuity Reference Chart
      G08067811Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Install the switch in the reverse order of removal.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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