The following procedure will allow you to read codes and reset the check engine light on Acura cars.
Locate OBD-II Port under the dashboard on the driver's side. This is a 16-pin port. All 1996 and newer ACURA vehicles have this port under the dashboard.
Plugin your handheld scanner into the OBD-II port.
Turn key to position II. All the dashboard lights will turn on. Do not start the engine. If your ACURA has a Start/Stop button, you will need to press the Start button without pressing the brakes.
Allow the OBD-II scanner to turn on and connect to your ACURA Engine Control Unit (ECU).
Read Codes. Read ACURA check engine light codes from the Engine Control Unit (ECU) using your OBD-II scanner.
Write down the codes and research the problem before you replace any parts. Once you fix the problems that you found, come back to the main menu, and instead of Reading Codes, choose Clear Codes and press OK.
What does it mean when Acura checks the engine light flashes five times?
Acura check engine light may flash five times when you turn the key to position II but don't start the car. This happens when the fault codes are cleared with an OBD-II scanner or if the battery was disconnected.
It means that the emission systems are not checked by the ECU self-test, also known as the emission readiness test.
After a few driving cycles (usually within a week), emission readiness (I/M) is complete, and you can pass the emissions test.
If the Acura light is flashing five times, you won't pass a state emission test until the emission readiness test is completed.
Drive the vehicle for a few days, and your Acura check engine light should stop blinking once the I/M test is complete.
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Acura Check Engine Light On Troubleshoot Guide Our guide will cover the most common problems that cause an Acura check engine light, as well as how you can diagnose the check engine light on your own.