2003 Tahoe AC control module(replace bulbs)

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LOWHOE775

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So I needed to replace the bulbs in my ac module and I took pics of how to take it apart for anyone who needs help.
1. Start by taking of the dash panel(pops of no screws and make sure you put it in 1st gear with engine off, easier to take of.)
2. Take of the module removing the two screws on the sides I used a 9/32 socket.
3. On the left and right are tabs that you squeeze and at the same time pull on. Should come out
4. Disconnect the two harness by squeezing the tabs.
5. I Recommend you sit at a table to disassemble the module.
6. Remove the two knobs by pulling on them slowly (don't pry might damage them.)ImageUploadedByTapatalk1373070446.691145.jpgImageUploadedByTapatalk1373070462.040550.jpg
7. Turn the module over so the back is facing you and remove the four screws. Socket size is 3/16ImageUploadedByTapatalk1373070551.290307.jpg
8. Now separate the top (front) from the bottom.ImageUploadedByTapatalk1373070663.690401.jpg
9. Top left corner and bottom right corner have tabs that will release the circuit board. CAREFUL WIRE HARNESS IS ATTACHED
I didn't remove the harness it has plenty of wire to be moved around.ImageUploadedByTapatalk1373070926.407209.jpg
10. On the back of the circuit board you will see the solder points of the bulbs, just heat the point from the back and slowly pull on the old bulb to get it out.
11. I used the led bulbs to replace my stock ones T1 bulb wide angle with resistors (560ohms x 1.5 watt)
12. When soldering new bulbs on the left point is the POSITIVE and the right is the NEGATIVE. New bulbs will have one wire longer than the other, the longest being the positive.
12. After soldering all burnt out bulbs take to your Vehicle and test before assembly.
13. Assemble in reverse order and should be good to go hope this helps out good luck

ImageUploadedByTapatalk1373070446.691145.jpg

ImageUploadedByTapatalk1373070462.040550.jpg

ImageUploadedByTapatalk1373070551.290307.jpg

ImageUploadedByTapatalk1373070663.690401.jpg

ImageUploadedByTapatalk1373070926.407209.jpg
 
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LOWHOE775

LOWHOE775

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ImageUploadedByTapatalk1373071675.040195.jpgImageUploadedByTapatalk1373071693.173621.jpg
Use a fine tip soldering iron makes it easier.
Final product done. My fan button did not light up. This was a problem with the circuit board in the location of where the bulb was o well:( ImageUploadedByTapatalk1373071823.007143.jpg

ImageUploadedByTapatalk1373071675.040195.jpg

ImageUploadedByTapatalk1373071693.173621.jpg

ImageUploadedByTapatalk1373071823.007143.jpg
 

ScottyBoy

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Great job. That's exactly how I do them. And on that fan button bulb, just run two tiny pieces of wire to it to the next closest working bulb and solder that wire as a jumper to get power to the LED beneath the fan button. I know you will also have to file or notch the plastic around that fan button so it won't pinch the wire when you reassemble the panel together.
 

NathanJax

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made it a sticky

:Handshake:
 
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LOWHOE775

LOWHOE775

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Great job. That's exactly how I do them. And on that fan button bulb, just run two tiny pieces of wire to it to the next closest working bulb and solder that wire as a jumper to get power to the LED beneath the fan button. I know you will also have to file or notch the plastic around that fan button so it won't pinch the wire when you reassemble the panel together.

Thanks a lot I didn't want to start with anything big yet, so I experimented with this and came out great. Thanks for the suggestion I will definitely do that. It does not look good without the fan button. :)

---------- Post added at 08:30 PM ---------- Previous post was at 08:27 PM ----------

made it a sticky

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4birdman

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Where did you get the bulbs at? Did they come with the resistors pre-soldered or did you do that? Trying to find some warm white ones so they match the factory gauge lights.
 
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LOWHOE775

LOWHOE775

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Where did you get the bulbs at? Did they come with the resistors pre-soldered or did you do that? Trying to find some warm white ones so they match the factory gauge lights.

I actually got the resistors separate and I soldered them together. Got bulbs on eBay look up T1 bulb. Think you will find an LED white I couldn't find the warm white ones.
 
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mattt

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My 04 has the manual, dual temp sliders and the pass. side slider back light is out. Is the bulb replacement similar or the same for the manual slider AC/Heater controls?
 

treehan77

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Are the OEM bulbs inside this AC unit the SAME OEM bulbs from the steering wheel control buttons? I ask because there are no radio shacks near me, can't order the parts online from radio shock (out of stock) and i have an extra steering wheel control buttonthat has working bulbs, and two bulbs are out on my AC unit. Can i just swap those in? thanks...
 

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