SES on after driving thru water

[hsj]

I searched the forum but didn't find any info that helps. Anyway, last week I drove my 04 X3 thru a big pond of rain water on the highway and soon after that the Service Engine Soon light lit up. I bought a "CodeKey" OBD II scanner from Costco and was about to plug it in to the OBD port. However, it seems like that the OBD connection that's right above the hood release latch is not the same shape as the connector on the OBD II scanner. Since I couldn't figure out where or how to plug that in correctly I decided to visit my local AutoZone but the two guys there were just as confused as I am.

Can someone please tell me if I need an adapter in order to plug it in? Also, any idea what could be triggering the SES since I am pretty sure it came on minutes after the car drove thru the pond of rain water. Please help me!!! I want to know what the problem is before I hit the road to Vermont on a ski trip this Saturday.

This is the scanner that I bought.

http://www.amazon.com/CodeKey-Engine-Diagnostic-Tool-Board/dp/B0025ZHF9W

Edit: Well, I just figured it out. You need to pull the plastic cover off after opening that little door. Tricky engineers!! Anyway, my cheapo codekey scanner gave an "error" instead of spitting out some codes. I went back to my local AutoZone and they scanned it for me with a Actron 9175 scanner.