An illuminated check engine light is one of the most upsetting and annoying auto problems that can happen to a vehicel. When the light comes up, drivers sometimes can reset it by disconnecting their battery and reconnecting it again. However, this may not work for a BMW. To turn off check engine light on a BMW, you may need an iOBD2 BMW scanner, which costs less than 150USD. Below is how to reset BMW check engine light with the OBDII scanner.

1. Plug the iOBD2 scanner to the OBD port under the dashboard. Make sure the connection is alright.
2. Get an iPhone, download a FREE iOBD2 software from app store, and install the software on the iphone.
3. Set your iOBD2 app to diagnose the BMW via Wi-Fi. You can find detailed procedure about this step from this link: http://www.wikihow.com/Use-iOBD2-to-Diagnose-Your-Car.
4. Turn the ignition key to the ON position, open the app and connect the tool with the BMW via Wi-Fi. Do not rush to start the engine now.
5. Diagnose the BMW with your iPhone by reading DTCs and displaying the trouble codes. Your phoen will then display the DTCs the OBDII scanner has detected.
6. Click the "Clear" option to erase the DTCs concerning the ignition system.
7. Check if the check engine light is out. If yes, turn off the ignition and pull out the connector from the port. If no, try to read and clear the fault codes again.

Posted by: jean at 06:37 AM | Comments (156) | Add Comment
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