Check engine and air bag light flashing !!!

wrongturninwv · 08-05-2006

93 Mustang 2.3 fuel injected.Sons first car and my big problem. Not rich here just want it to run safely to get him back and forth to work. First problem is air bag light. Read and tried to reset it as in 1 of your posts. Gray wire looked like one you would put a fuse in. Found on left drivers side not behind glove box. No beep and did not reset. Air bag light flashs 1 time then 5 times then over again. Problem #2 is check engine light. Had test done and he did not clear codes so I have to find out how to do that too. Codes read 121,172,186,223,and 224. I know what they all mean but hear that 1 code can set off all the rest by change in engine from first code. Most of you came up with the DIS Module so that is what I will try. I have new plugs and wires and pcv in it. Car runs fine except for small misfire when idle,not much speed from dead stop but once moving seems to run fine. What type tester do I need cause all the auto parts stores here only can test 95 and up ? Need a pro that has had the same problems with his. Thanks need answers

wrongturninwv · 08-15-2006

Changed DIS module. All codes gone no more check engine light. Air bag light still flashing but will figure that one out too. So if you guys have a problem like mine check your DIS module first. Car runs great now.

**74stang2togo** · 08-17-2006

It's true that one little problem can set a bunch of codes, if I still had my code book I'd go ahead and decrypt that for ya, but I'm glad you found the problem. Most auto parts stores have the right scanner and cables to read the 1983-1995 Ford EEC-IV system, but most parts store employees don't like to or don't know how to properly do it, out of the entire crew at the store I worked at for two years, I was the only one who knew how to run the full test and get all the codes at first, and then after I showed the other guys on my cars, they knew how, but didn't want to do that much work (especially when EEC-IV can take up to 10 minutes to run all tests (there's a total of four that should be run) and get all codes, modern OBD-II cars (all 96 and up and some 95 GM and Chrysler) do it in 10 seconds or less.

The airbag light usually means one of three things: 1. There is no airbag (removed by an unscrupulous shop or previous owner, or not actually replaced after an accident by the same) 2. The Airbag system isn't functioning properly 3. The Airbag has somehow been triggered, but failed to deploy. Needless to say, it needs to be checked, and is best done by a proffessional, because accidental deployments aren't fun (didn't happen to me, but my ears rang for three days when the tech in the bay next to mine accidently set one off!) and can even be dangerous.

TownCarTechi · 2 Weeks Ago

Hi, I have a problem with my air bag light and I found this post from years ago so I decided to post to it rather than create new.

The car is a 1992 Mustang LX. I took it to the dealership and they told me that a fuse in the air bag module had blown. A new module would cost $550, but they would also need to troubleshoot to see what caused the fuse to blow in the first place at unknown labor costs. I elected not to pursue until I chatted with all of you.

Could someone provide some guidance? One electrical shop I talked to suggested going to a salvage yard for the module. I also looked on RockAuto but didn't know exactly where the module would be listed. Can the fuse in the module be replaced rather than the whole unit?

SM90Stanger · 2 Weeks Ago

My airbag light was doing the same thing and I read the code to find that mymodule was not working as well, so I replaced it with another and that fixed the problem. I still have no idea what a clock spring is but I basically replaced all the little stuff on the steering wheel.

This is my thread:
http://www.allfordmustangs.com/forum...-blinking.html

Steve

b_chandler · 2 Weeks Ago

Here's a great write up on troubleshooting Mustang air bags.

Mustang Air Bag Diagnostic Codes

The internal fuse failure is pretty common. I don't know what causes it, but this is not the first I've seen. My car did the same thing. One code was the clockspring, then after I replaced the clockspring, the remaining code was the internal fuse code. I let it go after having sticker shock over the new module. Later the controller would click and chirp after startup. I disconnected the controller for now. I'll deal with it when I start driving the car more often.