Bay 13 calls it "A" and "B" "diagnostic connectors. Anyway, here's the dumb thing I did: in replacing the headlight bulbs, I slid the diagnostic module out of it's clip and set it aside to have more room for my chubby fingers. It was raining, my hands were still too fat but after much cursing, I finally got the bulbs seated in the headlights. I quickly shut the hood, got out of the rain and drove away. After dinner a few hours later, the car started making a never before heard, gawd awful moaning sound. It was still raining and only a few blocks to home so I winced and put up with the moaning and clattering. In the carport, I opened the hood...you guessed it...the diagnostic module had fallen down to become wedged against the belt wheel on the alternator rubbing and melting away some of the plastic on the "A" side of the module, exposing, but not destroying 3 of the wiring contacts on that side. The plastic lid on the "A" side was also lost. The chubby fingers again required much time to carefully "un-wedge" the unit. Using electrical (and some gaffers) tape I "jerry-rigged" a covering for the unit and got it back in it's clip. Yes, everything still works!. .but with my luck, it ain't gonna for long. I went on line to try and find the part. No luck. You guys got any ideas? Thanks for even readin' this missive.