May 2012 Randy’s Electrical Corner - Jp Magazine

When Trasborg came to me and asked for help with fixing the turn signals on Jp magazine’s ’01 Wrangler, I thought he was just lazy. I mean, how many articles have I done on turn signals in Jeeps? As an editor he should have read all of them before they got printed (it is kinda part of his job—well, maybe it’s his whole job). So, I didn’t know if he just didn’t bother reading them in the first place, or if he was just too lazy to dig out the stories and look them up himself. But I like helping people, and I like writing for this magazine, so instead of telling him to get his lazy butt off the couch, I agreed.

may 2012 Randys Electrical Corner guts Of Master Switch Photo 35628302 Here are the guts of the master switch. Trasborg tells me that he hit the hazards one cold winter day, and couldn’t get them to shut off. He also told me that over time, other things seemed like they stopped working, until the headlights stopped and he had to stop driving the Jeep at night. So, I figured some little tab or spring was loose and got gummed up in other stuff. After breaking a tab getting the switch out, I pulled it apart and immediately several small parts jumped out. I spent a couple of days finding them all, but in the end there was just no way to put it all back together and make it work.

I went to his place because he’s got more tools and beer, er, soda pop, than I do, and went to work. And, yes, he sat on the couch playing on the computer the whole time. He was muttering something about deadlines, but the one time I looked I saw some ticked-off birds on the screen.

The switch is in the steering column, and I figured out how to get to it on my own, so I figure you can too. Trasborg tells me that it is a turn signal switch and it was changed for the ’01 model year. He says the earlier TJs had the headlight switch in the dash and for 2001 it was moved to the steering column. I don’t know about all that, but this switch controls way more than just the turn signals. He had no headlights, no parking lights, no turn signals, no brake lights, and no hazards. The only lights that did work on the outside of the Jeep were the backup lights. To me, that makes this more of a “master” switch than a “turn signal” switch. When I asked him about it, his response was, “Well that would explain all the screeching brakes behind me at stop lights.”

I figured that I could pull the thing out, fix whatever was wrong inside, and put it back together. I mean, if I can do a starter, I should be able to do a switch, right? Boy was I wrong. And, I kinda sorta broke the original getting it out, so even if I did fix the guts, I’d have had to glue it back into place. So, follow along as I show ya how to not break stuff worse, and how to replace the master switch on an ’01-’06 Jeep Wrangler.

PhotosView Slideshow Once I realized how much this switch controlled, I feared the worst. I thought everything was run through it. But when the new Mopar replacement showed up from Collins Brothers Jeep, I saw that the wiper switch was separate. I learned my lesson with removing the switch from the steering column, so I used one of Trasborg’s Torx drivers to swap the wiper switch from the bad master switch onto the new one. The one thing I did learn in pulling the old and busted switch out is not to force things. So when I went to put the new switch in, it hung up on something. I pulled it back out, and I found this tab (arrow). I figured it was snagging on the steering wheel or something, so I straightened the wheel up and the switch fell right in. If you are doing this at home, maybe try straightening the steering wheel before you start things off. You might expect the switch to just pull out of its home. It doesn’t. There are two T-20 Torx screws holding it into the column. Be sure to unplug and replug all the wires going into the back of it. There isn’t much slack so it might be a little difficult, but it is doable. The hazard switch that controls the brake lights and turn lights plugs into the middle of the master switch (behind where the Torx driver is here). Don’t forget to plug it in, like I did. After screwing the master switch in, but before putting the steering column cover back on, have a friend watch all the lights outside the Jeep to make sure that they all work.