Cadillac Repair: 1991 Sdn Deville hi-lo beam switch, tilt positions, low beams

Question
Can't get hi beams to come on, don't hear normal click when using switch. I assume switch is bad and I don't know how to replace it, can you provide some guidance?

Answer
Hello Larry,

This is sort of an easy repair depending on your mechanical ability.
It sounds like the dimmer switch is shot.
Go to a parts store and obtain a dimmer switch.
It is located under the dash on the left side of the steering column.
You will need to remove the lower dash panel under the steering column. Then you need to remove the 4 10mm head bolts from the steel knee bolster. You may need to need to remove some a/c plastic venting too, but no big deal. Just look for attaching screws. With your head under the dash, you should see the dimmer switch attached to the steering column with two screws. One has a stud and a nut. The other is just a screw. Do not remove the switch held on by the stud! That is the electrical ignition switch!
The harness is three wire that plugs into the dimmer. To remove the dimmer switch connector squeeze the two tabs and pull.
Before you remove the dimmer switch, tape the rod running down the steering column to the steering column. Remove the nut and screw. Remove the dimmer switch. Replace,lining up the rod and inserting into the center hole on the new dimmer. install screw and nut, but do not tighten tight. Lower tilt to center position. Put your hand on dimmer switch and put slight upward pressure. Hold in place while pushing on dimmer/wiper lever to actuate high/ low beams. You should feel the click and move the switch till the lever actuates correctly. Tighten the screw and nut. Sit in the seat and test your work. Tilt the column up and down. Try in all tilt positions. If everything works mechanically, go under the dash again and plug connector in. Turn headlights on and check low beam and then high beam.
Reinstall dash components. With no experience and simple hand tools, should take less than an hour and then you get the pride of doing the job yourself!
If you have a problem please feel free to contact me at my website contact http://www.autotheftexpert.com


Rob