Switches on blower ,turn signals ,windows, brakes stopped working. replaced all .after running 5 minutes they stopped working again there were no blown fuses. i think someone else replaced steering wheel do to airbag being deploided. need ideas!
Air bag power runs off the same power line you may have a faulty air bag been fitted.it may have burn't out the voltage control unit for the ignition. or the air bag has not been wire'd in properly and its shorted out the trip in the control unit. you will need to remove the air bag, ( battery off car wait 20min ) remove the air bag. and have it tested. there have been a lot of copy air bags been reported and they are more dangerous than they should be cause electrical fires or in an accident they explode in your face. and when explode they do do some damage to your face..... would have this check.
SOURCE: Automobile electrical problem
I hate to say it but GM "W" bodies of that time period ( Regal, Cutlass Supreme, Lumina, and Grand Prix) are notorious for turn signal problems. I'm a machanic and also have owned 3 W body vehicles. The pivot bushing in the switch wears prematurely and in turn causes the copper contacts to barely touch each other. If the contacts are dirty, there is resistance. Where there is resistance, there is heat, hence the smoke. It's just a poor design. What I do instead of replacing the switch requires some time and some surgical skill but it always works for me. At the pivot end of the switch, I remove the screw and remove the metal tube insert. I wrap the metal with electrical tape to take up the slack from the wear then grease the heck out of it. At the contact end I attach a piece of sheet metal to the bottom of the movable part of the switch so it sits underneath the non-moveable part making it so the moveable part can't lift up and lose contact. That's just a vague description but if you want a detailed one let me know and I'll write one. I did it to my '89 Regal 4 yrs. ago and to my wife's Grand Prix 1 yr. ago and they both still work great. Just a design flaw in the switch. Sometimes you have to pick up wher the car companies left off! beest921
SOURCE: 99 intrepid electrical problems
i have seen an ignition switch cause exact same problems you are having on 1 of these vehicles..needs to be replaced
SOURCE: replace turn signal switch 1998 chevy lumina
You may look or feel the back side of the steering wheel, looking for 2 screws that hold the airbag to the wheel, these will be internal torq type screws (star) you may have to rotate the steering wheel 90 degrees to access the screws. You should first disable the airbag, by removing the airbag fuse, and or by disconnecting a yellow connector located near the base of the steering column. under the knee bolster.(panel below column). Once the retaining screws are removed, lift bag and disconnect the 2 connector to the airbag, the ground for the horn, and the horn contact wire, which requires you to push down and twist counter clockwise, damage to the horn contact ring will occur if you try and just pull connector from the ring. Now you can remove the steering wheel, may require a puller, and the you will have access to the turn signal switch.
SOURCE: Have the 3rd brake light,
change the bulbs if not there a switch is on the brake peddle it could b it
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