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Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the internet.
Hi, I'm Mike Green. I'm one of the owners of 1AAuto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20 plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1aauto.com. The right parts installed correctly, that's going to save you time and money. Thank you and enjoy the video.
Okay, so part one of two, replacing the multi-function switch on this 1999 Suburban, same as any 1995 to 1998 truck as well as 1999 to 2000 heavy trucks and 1995 to 1999 SUV. The tools you need are pretty basic, an 8-mm or 5/16 wrench to disconnect the battery, flat blade screwdriver, steering wheel puller. That is the one special tool you will need. Some millimeter sockets and ratchet and a T25 Torx bit and also something to cut some wire ties.
Disconnect your battery. You can see we've disconnected the positive battery cable here. That's an 8-mm or a 5/16 wrench. You want to disable the airbag by pulling the fuse, which on this truck it's #10, airbag, so you want to use your puller here and then pull out the #10 fuse. Okay, just a regular screw driver and there's slots right in behind if you feel with your finger. You just put the screwdriver into the slot. I just kind of work it a little bit and jiggle it. You can see the airbag comes up. Then inside there's the slot. Then your airbag comes off. You unplug the airbag. You pull this little locking tab out and just pull like that and your airbag is out.
Next, is your horn wires, which is this button here and just kind of twist it and pull on it and it comes out. So I'm removing this bolt. It's a 21-mm bolt. Now I'm going to put on a steering wheel puller. This is probably the one special tool you'll need in this project and it's usually a pretty inexpensive tool to buy. Okay so here I'm just threading in the bolts for the steering wheel puller. Then I'll grab my -I'm going to tighten them up a little bit, and then grab my 7 or 5/8 wrench and you will see me pull the steering wheel off. This is the best way to get the steering wheel off obviously.
Now you want to remove this lower panel and you have to remove four 7-mm screws, one here, one here, here, and then right under the parking brake release. After you remove those seven, you just kind of pull on it firmly and it does have some clips that hold it in. So let's disconnect this air hose here. It just pulls off. That goes down the other way enough. There are two T25 Torx screws; one is to the left of center of the column, one's right in the center. There are two holes on the one that is further away. Tilt the level will just pull right out, okay. It's just kind of pushed in. That comes down and now you need a 4-mm socket. There's a 4-mm bolt here and then if you go just up to the right you can look up in there and there is a 4-mm bolt right up in here and that allows this to come up enough. I'm going to switch to a T25 Torx bit again. There's a bolt right here that comes off that holds the switch to the column. Then this is a little tricky. I'm going to take this bit. I've got 1/4 inch wrench here. I'm going to use it like this and push it down into the screw. There's a screw on top here and it holds that switch on. You push it down in. Okay and here I have a ratcheting wrench but obviously you can just use a regular 1/4-inch wrench. Then you can reach in there and undo it with your hand. That way what you are going to want to do is remove this plate down here which is four 10-mm screws, one, two, three, and four.
Once you've got that plate off, then you want to pull this little piece of duct out of here. You are going to want to remove this red screw here and then this black screw over here that holds the connector in. Those are both 7-mm. You're also going to want to cut any of these wire ties that are tying that harness together. Okay so now once you have your connector down here what you want to do is just put your screwdriver into them and then the connectors for the multi-function switch actually slide forward and out.
Now we need to unplug the cruise control and it's this little clip right here. It's plugged in there kind of like this and then this locking tab is pushed in from the back side to lock it. So you have to pull this locking tab out first and then press and pull that out. Now that I have everything unplugged, there's kind of this conduit here that I can just pull apart like a big piece of electrical tape. I can carefully pull it apart. There's my old switch removed.
So here we are. Here's our original switch, our new switch from 1AAuto, obviously, it's got this little mesh on here. You see everything is the same. It's going to bolt up all the same. One thing they did try and do is you can see on our original here it would appear that you have a bigger harness for that brake switch. Actually I'm just going to pull it out and you can see we've got plenty of harness on the new switch.
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Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts.
In this video we're going to be working with our 1996 GMC Sierra K1500. We're going to show you how to remove and replace your vehicle's multifunction switch, which runs the wipers, high beams, and turn signals.
If you like this video, please click subscribe. We have a ton more information on this truck, as well as many other makes and models. If you need this part for your vehicle, you can follow the link down in the description over to 1AAuto.com.
Here are the items you'll need of this repair: 7 to 21mm socket, ratchet, socket extension, 8mm wrench, breaker bar, torque wrench, T25 Torx socket, E5 inverted Torx, flat head screwdriver, steering wheel puller, side cutters, snap ring pliers, 90 pick tool, zip ties
Remove the negative post from your battery using a 5/16s or an eight millimeter wrench. Be very careful, this wrench isn't long enough but if you have a longer one, you may be able to hit the positive battery terminal with it. You want to be very careful you don't do that. Remove the terminal and isolate it from the battery.
Now just so you can see, because it's pretty difficult to show on the back of the steering wheel, there are these notched pins, all four of them on the airbag and these sit in these four holes. What I did to release them is there's openings in the back you can reach through, the flat blade screwdriver and pry them up and out of the way. Pretty difficult to get back there and see that, but you just need to reach in there and pry it out of the way with your screwdriver and it'll pop itself up. Remove the airbag.
There's a little hook on the harness, you need to disconnect to get this out all the way. Remove the orange safety. You may need a screwdriver to release the electrical connector here. Put your seatbelt through the steering wheel. This will help to hold it while you break the 21-millimeter bolt in the center loose. Release your seatbelt and remove it from the wheel. Make sure that the steering wheel is nice and straight and flat. Finish removing the 21-millimeter nut and wiggle the wheel or hit the back sides.
Now if you can't just knock the steering wheel off by hand, you can use a steering wheel polar. This is actually kind of a universal polar. These are available from 1AAuto.com, the same one we have here and it comes with a variety of bolts so pick the ones that fit your vehicle.
Go ahead and thread them all the way and you can just do this by hand, because they'll bottom out in there. If you try to get them much tighter than that, you could risk damaging something underneath. Once those are in, install the center bolt, tighten that down until it bottoms out on the center bolt of the steering wheel. I'm going to try to keep this straight using a 19 millimeter socket and ratchet and holding the wheel straight, tighten down the center bolt. Once it comes free, the wheels should come off pretty easily. Carefully remove the steering wheel. Slide the wire for the airbag clock spring through it.
Remove the snap ring on the clock spring with a pair of snap ring pliers. Simply put the tips of the pliers into the openings on the snap ring. Spread the snap ring and lift it up out of its grooves. Slide the snap ring off. If you have a tilt steering column, make sure that it is tilted all the way up. Grab the lever firmly. Pull that out. Remove the two T25 Torx on the bottom of your steering column cover. Pull down to separate your column, and then push in and pull out to release these hooks in the back.
Now there are two of these inverted T5 Torx that you need, an E5 inverted Torx socket to remove. However, if you have a 6.4 millimeter that's on there pretty snug and as long as you go careful, you should be able to spin them right out. Reinstall the lever for your tilt column if equipped. Push down and remove the lever again, so you don't bump it. It's hard to show and we'll show you when the piece is removed, but there's a small hole in the top of the ignition cylinder that you can get with a hooked pick.
I'm looking through the hole for the hazard switch to see this. What you need to do is push down on that. You want to hold your key like you're trying to start it and then push down on that little hole. You'll feel it released. Slide it out as far as it will go and turn it back some. Remove it fully so you can remove your steering column upper cover.
Now just to give you a better idea of what we were doing with that cover on top and yours will be right here blocking your view but you can look through, reach in to this whole. Key to the start position, push down, pull out, remove your pick, rotate backwards, remove your cylinder.
Remove the four 7 mm screws along the bottom knee panel of the dashboard with a 7mm socket and ratchet. We have some, it looks like, wood screws and some little machine screws that have been put in here. It looks like they might be for an old break controller for the trailer or something like that. I may have to remove these, but they shouldn't be there on your vehicle.
Now all along the top of the knee panel and the dash there are some plastic clips, so we just have to pop those out. Pull out your e-brake release handle as far as you can, and use a small flat-blade screwdriver to compress the tabs. There's one on each side. We're not going to be able to show you the one on the inside of the panel, just because of the way the dash is shaped, but it's on the opposite side of this clip. Then you should be able to turn the e-brake and slide the cable out to remove your knee panel.
Remove the four 10mm bolts holding the metal knee panel to the dash with a 10mm socket and ratchet. Remove the metal knee panel from the dash. I'm just going to remove this dash vent so I can see a little bit better. Remove the two T25 Torx screws from your combination switch or multifunction switch with a T25 Torx socket and ratchet, and one at the front on the bottom left corner. Careful not to hit or damage your airbag clock spring while you're at it. Peel open the wrap around the harness. This is kind of just like a really wide electrical tape. You can just peel that off.
Go through the opening in the dash that the center vent was and remove the 7mm bolt in the middle of the ignition switch harness. On the side of the connector to the ignition switch, your multifunction switch is another 7mm screw you'll need to remove. Once that's out, you can slide that connector up and remove the harness. At the front of the switch on this side of the connector, pry up and slide the side connectors out of the main connector.
If you follow the rod from your gear selector, you'll find a little connector up here. Push this down with a small flat-blade screwdriver and remove it, as this ties into our multifunction switch, along with your two connectors we've removed from the ignition. Once the safety tab is out, push down with a small flat-blade screwdriver and remove the connector.
Now feed the two wires and the connector over the top of the steering column and pull it down with the rest of your wiring harness. You can now slide the harness out of the dash and remove your multifunction switch from the vehicle.
There's nothing wrong with our old multifunction switch, so we're just going to reinstall it, but the process would be exactly the same if you were installing your new part from 1A Auto.
Simply send the wiring harness back down in the column. Be careful not to jam or catch it on anything. We'll put our switch back into place. Be sure that you line everything up nicely. Install your new switch onto the column. It'll drop down into place when you have it aligned properly, and reinstall the two T25 Torx screws with your T25 Torx socket, ratchet, and a little extension.
Send the little two wire electrical connector back over the column, plug it back into its switch. Don't forget to reengage the green safety tab once it's in. Slide the multifunction switch harnesses back into their slots until they lock in on the ignition switch harness. Then push back up on the receptacle and set the connector back into place. This should go in at least partially.
Slide the receptacle back down into its bracket and tighten our screw back up with our 7mm socket and ratchet. Don't forget the 7mm screw on the side of the plug receptacle. Resecure all of the harnesses and the sheathing here, and then we'll throw a few zip ties back on there where we cut them out from at the top and bottom.
Reattach your vent. Reinstall the steel support for the knee panel and the four 10 mm screws. Tighten down the bolts with the 10mm socket and ratchet. Pull your e-brake cable back through the opening and twist it, it'll lock it back into place. Line up your clips, these ones on the dash vent you should pop in first. Once the clips are in, reinstall all four of the 7mm screws. Pop your e-brake release handle back into place.
Reinstall the upper half of your steering column cover. Be sure to line up this little rubber boot for your gear selector lever. Just line up the channels and slide it in there. This is the detent that we had to hit on the ignition cylinder. Slide that back in. Make sure your key isn't all the way before you start doing this. Slide it all the way in, turn it forward and back to make sure it engages.
Reinstall your tilt lever. Place one hand firmly on top of the steering column. Release the lever and slowly allow it to go up. One thing you don't want to do, and I'm just going to do this for demonstration purposes, is just release the lever because that thing really moves. If this isn't aligned, well your shift is not in the right place, you've left a tool in there or even worse if your fingers were in here for some reason, that's going to do some damage. Make sure you let it go up slowly so you can reinstall your lower cover.
Reinstall your two E5 inverted Torx screws into the upper steering column cover. Remove the tilt latch rod again and now these hooks need to slide in and under and then pull forward to engage. Line up the lower boot for your gear selector after you've set the hooks in the back of your column cover. Snap everything back into place. Once it's lined up, reinstall your to two T25 Torx screws on the bottom of the column.
Reinstall your tilt lever. Carefully reinstall the harness for your clock spring and then pull the alignment pin out of your new part.
Reinstall your wheel onto the splines. Now one of the cool things about these wheels is they have a keyed spline so you can see I can't get it on and then it lines up and falls right in. Install the 21-millimeter nut as tight as you can toward the steering wheel nut to 29-foot pounds.
Make sure to attach the harness back into its clips as well as the one on the airbag, but we'll reconnect our connector and install our safety tab first. Slide the bag into place and just push it in firmly to engage all four clips. Now the most important step anytime you work on your airbags or anything that has to do with the airbag system, just put your key in, turn it to the run position, then reconnect your negative battery terminal. Remember to tighten this down with a 5/16s wrench. Now the reason we do this in the order that we did is power just came back on in the vehicle and our key is already on.
If anything bad had happened with the airbag like it shaved wire or some other issue, the bag would have deployed now while we're out here safely under the hood, rather than once we get the vehicle and turn the key and we're sitting right in front of it. While airbags are meant as a safety device in improper conditions, they can be very dangerous.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
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Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the internet.
Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20 plus years of experience restoring and repairing cars and trucks like these to show you the correct way to install parts from 1AAuto.com. The right parts installed correctly, that's going to save you time and money. Thank you and enjoy the video.
Part two of two, replacing the multi-function switch on this '99 Suburban, same as basically, any '95 to 2000 truck or heavy duty truck and '95 to '99 SUV. We'll be covering the installation. If you want to see the removal, just check out other videos. A quick look at the tools you'll need, various millimeter wrenches, flat blade screwdriver and a Torx bit.
Okay. Here we are. Here's our original switch, a new switch from 1A Auto. Obviously, it's got this little mesh on here. You see everything is the same, it's going to bolt up all the same. One thing, they did try and do is you can see on our original here, it would appear that you had a bigger harness for that break switch. Actually, I'm just going to pull it out and you can see we got plenty of harness on this switch. I'm going to feed the switch down through. I'm going to actually, roughly bolt this on first, just so I have it right, make sure I have stuff on the right place. Start my upper screw and start my lower screw. I'm going to take my harness, I'm going to feed it along with the other one and see if I can get this conduit back to where it should be. This control wire, you try to find a place. Harness and push in. Got on the other side, take it, push it in so that's all together now.
It's always good to try and put things back together the way they came apart because the factory hasn't had an idea what they were doing, keep were rubbing together, wires were getting chafed or whatever. I'll take my cruise control wire and I'm going to go in front of this. Pull this bar here, push it over. Grab hold of it on the other side of the cone, like push and pull harness stuff and over. Plug in. I have my lock and I'm going to reach up in behind and before I take care of this, I'll video it. Put into place. Now, up underneath here, I'm going to try to take my connector. I'm just kind of working my connector right in to the other end. Now, I'll tighten up that bolt and then bolt it back on to the bracket.
I've bolted my connector back in and I bolted the connector on to the bracket to keep it steady. We've connected the battery and what I'm going to do is do a quick test here, first is the emergency lights. How is it been working. Let me see how this works, the way it works. The watches are working. Okay. High beam. Okay. The one thing I can't really test is the cruise control. First, I'm going to take a couple wire ties and kind of restore this back to the way it was, all wired tied together. This tube up in here first. Make sure that's on well. A 10mm screw, make sure this one goes up into the right spot. The bottom, it kind of goes in and there's two hooks. One of them broken off on this. You kind of go in and make sure it hooks underneath, and make sure the shifts are bolted on there, correctly. That two T25 screws from the bottom here.
I'm going to take this, connects at a dock and then you got basically little pin here that go into slots. A four 7mm screws. Before we put the steering on, we're just going to put the tilt lever back in, pushes right in like that. There's a really small mark, I'm not sure you can see it or not, on the steering column, because you want to line up that arrow with the mark to get wheel straight. It's a whole lot easier to take it off, you just bolt it on, 21mm socket. Take your horn button and you have a little clips on it. Basically, just want to push it in and get it to stay. Now, your airbag, easy enough, clip it on, lock it. Before we connect the battery, we put the fuse back in for the airbag. Put the panel back on. There you go. Now, we'll connect the battery, make sure the horn works. Take it for a test drive, make sure the cruise works and everything is all set.
We hope this helps you out, brought to you by www.1AAuto.com, your source for quality replacement parts and the service on the internet. Please feel free to call us toll-free 888-844-3393. We're the company that serves you on the internet and in person.
