Tip & How-To about Heating & Cooling

Wiring 4 Way Switch Diagram 4 Way Switch Wiring Diagram

For many people wiring a 4 way switch is quite confusing. Actually with a little help it really is not that hard.

The first thing that you want to remember is that you need to label every wire carefully as you install them. I often will make myself a drawing and number each connection. Then as I install each wire I can number that connection on the wire and keep track of everything that way. It will also help you if you need to troubleshoot your project at a later time.


Notice also that both blacks and both red wires are on the same side of the switch. Do not get them crossed.

Also if you are controlling more than one light, you can not just feed through one light to the next. You need to run a black and a white from each light to the next one. You can keep doing that with many lights as long as you do not overload the circuit.

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1 Answer

I have two amps and want to turn them on with the PAC TR-4, but confused about the wiring setup,please help??


Its really quite simple to wire this up but I cant help but think "why would someone use this thing when you could just use a relay thats better quality for half the price" here is a diagraminjunearing.jpg

Jul 17, 2011 | PAC Audio PAC TR-4 Low voltage remote turn...

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how do you remove the dash panel where the emergency light switch is located?


pull up on the shifter bezel and then remove the 4 screws that hold the little tray by the shifter on and then pull really hard on the bezel that contains the 4 way switch and then its out,,you gotta disconnect the wires also

Oct 11, 2009 | 2003 Saturn VUE

1 Answer

turn signals quit working


I have been there with my '96 cutlass supreme, smoke from under the steering wheel kinda freaked me out also. Changing the switch in the column isn't that hard to do but you must follow the correct procedures. First disconnect the neg battery cable, find the fuse for the airbag and pull it. When you remove the cover under the dashboard(right below the column) you will see a wire harness connection with a yellow colored safety pin(plastic) that is the air bag harness lock, you must pull that out before you can unplug the harness. After that is disconnected the air bag is safe to remove. The wire harness down there is all held together with a screw and can be a little tricky to manipulate but not impossible. Before you start go to your local Murrays or autozone they will rent you the correct steering wheel puller. If you can get a Chilton's manuel for your car it has the step by step instructions. You will also need a set of outside snap-ring pliers and some mechanics wire for pulling the new wire harness through the column. There really isn't that much to disassemble, the switch is one of the first thing you'll see after pulling the wheel off. Don't let this intimidate you, to avoid confusion during reassembly take photos while you disassemble everything for reference.

Aug 09, 2009 | 1995 Oldsmobile Cutlass Supreme

1 Answer

While driving went to flash lights and the whole car quit. No power whatsoever - only seat adjustment switches work. When turning the key .... nothing at all. What could this be?


Hi
Two or three times in my life I've encountered this. I'm not a mechanic but I've been told it's called the 'feed wire' which is a little wire that runs off the negative battery cable right where it connects to your negative battery post. It will sometimes get broken or rusts through and is shorting out by contacting metal etc., and this basically shuts off power to every system in the car. I have solved this for myself and others by simply fixing the little wire, which is pretty easy and open. 
I'm confused about why your seat switches would still have power. In the 'feed wire' cases I've solved it's always the same thing, people diving down the road and suddenly EVERYTHING goes dead and the car stops running. 
Hope this helps

Jul 04, 2009 | 1986 Lincoln Town Car

1 Answer

no spark


look under the dash or steering column,, check to make sure the ignition switch wires (black thick wire and white thick wires are connected back as if they were never cut or spliced...

Apr 06, 2009 | 1994 Honda Civic

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