Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Mentioned: 0 Post(s)
Quoted: 35 Post(s)
RE: Check Engine Light
Hey, 430. Welcome to the forum.
The CEL reports lots and lots of things, so you have to read the codes. It's a standard connector and tool which is a nice thing.
The OBD-II port is just inside the hood release, facing down. There is a little hinged cover that pops open from the front.
If you're in a DIY mode, you can rent a reader for free at lots of chain stores, I got one from Kragen (aka Shucks and Checker). Had to pay a hefty deposit, but they give it back when you return the tool.
In any event, you plug the reader into the OBD-II port (it's polarized, only goes in one way), turn on the key (Don't start the car, just turn the key to position 2) and press the read button on the device. Copy down the codes and you can erase them as well, but if you haven't fixed it they'll come right back.
Take care and enjoy the ride,