Join Date: Nov 2012
Thanked 10 Times in 5 Posts
It's been a while since I did the replace, but it is pretty straight forward from what I recall. However, you do have to take the whole fusebox unit out that includes the multiplexer, and then remove the multiplexer once you get the whole unit out. Impossible to just pluck the multiplexer out of the housing while it's still in the car. I also remember I really had to pry on the old multiplexer to get it out of the housing... thought I was going to break something for sure, but didn't... might have broke one of the clips on the housing, but the new one still held plenty snug when it was plugged in. So don't worry too much about that when you get to that point.
To do that, I think you just need to remove the cover underneath the steering wheel, and then you should have access to everything, although it is tight clearances. A lot of reaching up with pliers/flathead screwdrivers to get the leverage you need to pop off the wire harnesses. Might be a bolt or two that holds the unit in there, but the real PITA was getting all the harnesses off in such a tight space with your body contorted down underneath the wheel so you can see what's going on.
I also remember that at first I bought my replacement off of ebay, but the company sent me a unit from the passenger side by mistake. Didn't fully realize this before I already plucked the one out of my car. Anyways, not terribly difficult as long as you can stay patient. Like I said, holler if you need a unit, I still have an extra laying around I thought I'd be able to sell on ebay that didn't end up selling.
btw, if you still have the 98 unit in there, you're just going to fry another multi unit whenever you change out the current bad one. I kept my new climate control unit, but used the hazard switch (and clock, I think) from my old unit. The hazard switch didn't fit 100% perfect in the new one, like it stuck out a mm further, but nothing anybody would ever notice.