One of the sd plugs under the dash. Not the OBD As I have the airbag light back on from not turning the battery off when doing the gauge surround I have to go back to them and have it cleared again. Taz if you look at the wsm image Eric posted they show the sd socket they used. It describes clearing the codes by grounding pin one of that socket. I never tried thst but I will this time. I'll post the result when I do
Bob mine won't work because it is missing a wire. I believe the obd plug will also work to clear the airbag light. Back in 99 airbag light for regular cars had to be obd compliant and I believe our cars are the same. I will let you know. Some helpful info would be if out airbag system would cross to someone else's. Ie fiat, maserati, etc. I believe others have posted that the manufacturer of our ECM is the same as the guys that build most of them for gm, ford, honda, etc. my guess is that you are also missing that wire only older cars may have it.
Taz I do not have the fourth wire either. This is the SD plug that they used though to clear the code. I was not able to clear it via the description above from the WSM. There is a fourth lead in that picture. Image Unavailable, Please Login
Bob I believe it's the yellow shielded plug not the one you showed that you r supposed to ground but that doesn't make total, sense either because it only has two wires and three spots. If your plug is correct judging by the op pic wire one is in the plug but wire four is not. Like I said though I was told by someone that's not the correct plug to ground out. This is based on the look of the plug and the plug locking tab being on top. Maybe that. Is the right plug but like I said the fourth wire is not there.
FYI, the typical airbag/squib resistance it 2.0 ohms. However, DO NOT test it with an ohmeter directly on an inflator. There is risk that you could accidentally deploy the inflator and be injured or killed. When servicing other nearby items where you must remove/disconnect the airbag inflator (or seatbelt pretensioner), use a 2.0 ohm resistor (or purchase an airbag simulator tool for this purpose, for example, see 96-piece Test Lead Kit for Advanced Diagnostics which includes them). You connected the 2.0 ohm resistor across the airbag connector terminals after the airbag is removed/disonncect. Then, if you must turn power on to test other devices/components with the airbag disconnected you don't accidentally set unwanted fault codes which are difficult to reset.