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scottutk5 03-18-2009 11:46 AM

Are the A/C controls suppose to Light up?
I have just bought a 1998 Wrangler Sport. I was wondering if the controls for the A/C and heat were suppose to light up at night, because I have to turn on my overhead to change anyting. Can someone please let me know? Thanks.

Jerry Bransford 03-18-2009 03:48 PM

Yes, there's a little tiny bulb that lights up the sliding HVAC controls. :)

BLACKTOOTHGRIN 03-18-2009 06:29 PM


Originally Posted by scottutk5 (Post 340690)
I have just bought a 1998 Wrangler Sport. I was wondering if the controls for the A/C and heat were suppose to light up at night, because I have to turn on my overhead to change anyting. Can someone please let me know? Thanks.


There are 2 bulbs in your HVAC controls.
(one on the left, and one on the right)
They are very easy to replace, you only have to remove the center bezel. I will attach directions on how to do so from my Interior Lighting Thread for you. I'll also attach the link to the entire thread as well. Read through it all, you might find some info in there helpful on other lighting questions you may have later on. Also, here is a link to all the replacement bulbs for your 98.
(I have a 98 as well) Just enter all your info.

But remember, it is always best to pull the bulbs and see exactly what they are before buying new ones. I made a couple of mistakes along the way, just by following my owners manual on replacement bulbs, without pulling them first. The owners manual is not always correct. For that particular bulb, I think the manual lists a #194. After taking it apart, I found the bulbs that actually fit in there are ALOT SMALLER than a #194. I think they were #37 bulbs. Just make sure you look before you buy. The part number should be right there on the bulb itself.

Hope this helps. :)


Originally Posted by BLACKTOOTHGRIN (Post 318077)
I did the HVAC lights yesterday before the game. They came out nice, but I ran into something very unexpected while doing them. The owners manual for my 98 TJ states that the bulb in the HVAC is a #194 which would be comparable in size to the PRND21 Housing Light. So when I ordered the lights for this job, I ordered all #194 bulbs.

However, once I got into the HVAC I found that the bulbs were not #194. They are less than half the size of a #194. They are actually a #37, and there are 2 of them. The #74 LED's that you put in your Gauge Cluster is the replacement for the #37 in the HVAC as well. They also install in the same manner as the Gauge Cluster, with the twist locks.

When I ordered the #74 Tri-LED's for the Gauge Cluster, I ordered 7 instead of 5, just so I'd have a couple replacements if I need them. They came in REALLY handy once I found that I needed that size for the HVAC.:)
If your going to use the Tri-LED's in your HVAC you will need to gently squeeze the LED's together to get them to clear the inner hole of the HVAC.
You might be better off ordering 2 single LED's for this, but they may not provide as much light as the Tri-LED's. Your choice.:)

As for the's very simple. You don't even need to disconnect the 3-4 wiring harnesses in the back of the HVAC to do this. You should have enough play to gently pull the HVAC toward you to get to the bulbs.

If you need instructions, here they are:

1) Remove the defroster vent cover to access the 2 screws at the top of the Center Bezel.
2) Remove those screws, and the one located behind your ash tray.
3) Gently pull the Center Bezel toward you to remove it.
*If you remove your glove box ahead of time, it allows you to get a better grip on the Center Bezel.
4) Remove the 4 screws holding the HVAC controls in place, and gently pull the unit toward you. This will give you access to the bulbs located on the right side of the unit, and the top left side of the unit.
5) Remove the bulb and twist lock by gently turning the twist lock 1/8 - 1/4 of a turn counter clockwise.
*You may need some needle nose pliers if your fingers are big.
6) Replace with a bulb of your choice, test, and put everything back together in reverse order.

That's all. It's a very simple, quick, and inexpensive mod.

Keep in mind, this is for a 98 TJ with slider controls. I've talked with Ericpl, who has a 97 TJ with slider controls, and it is different. He actually has been able to use the same bulb from the PRND21 housing in his HVAC controls. So that must be a #194 in his. He also told me that there is only 1 Bulb in his HVAC, while mine has 2 Bulbs that are smaller. Why the HVAC slider changed from 97-98, who knows.

99+ models with the nicer HVAC controls will obviously be different as well. I think they have 3 bulbs in there, but I don't know what size.

BLACKTOOTHGRIN 03-18-2009 06:39 PM

And just incase you're interested in how your gauges would look when replaced with Blue LED's.

scottutk5 03-19-2009 10:48 AM

thanks a lot!

BLACKTOOTHGRIN 03-19-2009 02:07 PM

You're Welcome....and welcome to the forum. :wavey:

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