Why do I have codes but no check engine light?

The problem that triggered the code may not have happened enough times to illuminate the light. This most likely means the issue is not critical and that the code is pending. So if the check engine light is off, but you see an error code, use an OBD2 scanner to help identify what the problem is.

What is the difference between a solid check engine light and a flashing check engine light?

Both a solid and flashing engine check light indicates that a problem has been detected. However, a flashing engine check light indicates that it is a serious problem that requires your immediate attention. Instead, the light will appear in red or orange instead of yellow when an urgent issue has been detected.

Will AutoZone clear a check engine light?

Does AutoZone Scan Check Engine Lights? AutoZone does. If your light is on, and you are wondering why, head down to your local AutoZone where one of our store associates can help diagnose the issue through our free Fix Finder service.

How do you reset the check engine light on a Acura MDX?

Acura MDX: How to Reset the Service Light

1. Step 1 – Turn car on and access display signals. Turn the car on, but not all the way; that is, don’t turn the engine on.
2. Step 2 – Access the display signals. Press and hold down on the select/reset button for 10 seconds (or more).
3. Step 3 – Reset service light and display signals.

How do you turn off the check engine light on an Acura?

You can turn off the Check Engine light by either disconnecting the battery or by using a code reader to clear the codes. However, if the problem still exists it will come right back on.

How do you know if your Acura has a trouble code?

On all models, turn ignition On and observe red LED on front or top of ECU. The LED will indicate diagnostic trouble codes (DTCs) by number of flashes. In the event of a PGM-FI system malfunction, the Check Engine lamp will light and stay On. When this condition occurs, proceed as follows:

Why does my Acura check engine light keep coming on?

When your Acura check engine light remains on, the problem could be something as simple a loose gas cap. It can also be an indication of a serious engine issue, a problem with the emission system or in some cases even an indication of a problem with the automatic transmission.

How do you know if your car has a trouble code?

The LED will indicate diagnostic trouble codes (DTCs) by number of flashes. In the event of a PGM-FI system malfunction, the Check Engine lamp will light and stay On. When this condition occurs, proceed as follows: Using a jumper wire, connect terminals of service check connector.

What is the code for an Acura transaxle?

For example, 1 long blink, followed by 4 short blinks equals code 14. Four long blinks followed by five short blinks equals code 45. NOTE: Legend Models: If code 7 or 17 is stored and the S4 light on the transaxle indicator panel is also flashing, it may be necessary to diagnose the automatic transaxle control unit.

What is the OBD code for an Acura check engine?

P1201Cylinder 1 Misfire – Compare possible causes/symptoms for this Acura check engine light code to the Generic OBD II code P0301 P1202Cylinder 2 Misfire – Compare possible causes/symptoms for this Acura check engine light code to the Generic OBD II code P0302

What causes a flashing check engine light on an Acura MDX?

Other Issues: Flashing Check Engine Light- Acura MDX While a majority of the time, the flashing check engine light is going to be caused by a misfire related to your MDX’s ignition system or fuel system (as stated above), there are other issues that can cause it. Your timing chain could have jumped. If you have VVT, it may be having issues.

What does P0300 mean on an Acura MDX?

P0300: Random Multiple Misfire– This is one of the most common codes that is thrown when the engine is misfiring. It means that the engine has a misfire, but the computer can’t detect which cylinder that it’s coming from. This code is often thrown when there is a fuelissue, or a timing issue, and not just bad ignition components.

Where is the Check Engine light on an Acura?

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. Your browser does not support video tag.