Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2009 Acura TL BaseFACTORY OEM SERVICE PROCEDURE

Engine Start/Stop Switch Test/Replacement

Remove the driver's center trim (see DASHBOARD CENTER TRIM REMOVAL/INSTALLATION ).
Disconnect the 10P connector (A) from the engine start/stop switch (B).

Fig 1: Identifying Engine Start/Stop Switch And Engine Start/Stop Switch 10P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the two screws, and the engine start/stop switch.
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.

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.