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post #1 of 21 (permalink) Old 07-21-2009, 04:05 AM Thread Starter
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Angry dash / climate control lights stopped working

Guys -

I few weeks ago i noticed that the light for my manual temperature knob was not working. Tonight all lights on the manual climate control module stopped working (P/N P55111009AM). After tearing this thing apart to get to the bulbs I noticed that they are part of the circuit board. Can these bulbs not be replaced? Do I need to spend $100 to replace the entire module for 3 or 4 stinking bulbs?

Please tell me there is another way!

Thanks for the help!
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post #2 of 21 (permalink) Old 07-21-2009, 10:16 AM
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No, the bulbs can not be replaced.

2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup Camera, Chrome Wheels,
Magnaflow cat-back exhaust, Daytime Running Lights enabled, 2" Rough Country Lift with 265/70R17 Goodyear Wrangler AT/S

Last edited by jeep5253; 07-21-2009 at 12:44 PM.
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post #3 of 21 (permalink) Old 07-21-2009, 11:05 AM Thread Starter
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This has to be the dumbest design of any component of any vehicle ever made.
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post #4 of 21 (permalink) Old 07-21-2009, 12:29 PM
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Check this out.

https://www.jeepcommander.com/forums/...ead.php?t=8539

Here is the video.

http://www.youtube.com/watch?v=TNXjH7k1sfk

2006 Black 65th Anniversary Edition
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post #5 of 21 (permalink) Old 07-21-2009, 12:44 PM
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Originally Posted by jeep5253 View Post
No, the bulbs can not be replaced.
So I guess I should say they are not easily replaced.

2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup Camera, Chrome Wheels,
Magnaflow cat-back exhaust, Daytime Running Lights enabled, 2" Rough Country Lift with 265/70R17 Goodyear Wrangler AT/S
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post #6 of 21 (permalink) Old 07-21-2009, 12:56 PM Thread Starter
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Fairly easy to get to and open. The guy at the dealership told me that they have no specs on the unit and only sell a complete unit. The guys at the electronics supply store say they need to know the voltage and amp draw of the 3 bulbs to see if they have something comparable.

I am going to try a few different bulb types to see if I have any luck. Worse case is I break and and need to spend the $100.06 to replace it anyway.
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post #7 of 21 (permalink) Old 07-21-2009, 01:37 PM Thread Starter
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Thanks Bob123

I'll definitely do this mod. Going to work now with no time to search, does anyone know what LED's and resistor was used in this video?
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post #8 of 21 (permalink) Old 07-21-2009, 03:32 PM
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I really do not know. I just PM that member who posted the video.

The correct bulbs might be in this category, but I would not order any yet until I get a PM back from the member.

http://www.superbrightleds.com/leds.htm#hf3mm

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post #9 of 21 (permalink) Old 07-22-2009, 01:36 AM
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Quote:
Originally Posted by mccoymail View Post
Fairly easy to get to and open. The guy at the dealership told me that they have no specs on the unit and only sell a complete unit. The guys at the electronics supply store say they need to know the voltage and amp draw of the 3 bulbs to see if they have something comparable.

I am going to try a few different bulb types to see if I have any luck. Worse case is I break and and need to spend the $100.06 to replace it anyway.
for guys who work in an electronics supplier they know jack about electrical theory.

they need to know the wattage, well more like milliwattage of the LED rather than the specific current draw as P=V*I or R= V/I combine the 2 formulas and you get therelationship between resistance voltage and power and P= V*V/ R .

most LEDs are rated 3-12V the resistor is there to limit the current drawn, unless its in parallel then its to alter the P.D. across the LED
measure the voltage across the terminals of the LED and thats the voltage rating you want. the rest just follows on a higher wattage produces more heat so a low watt bright LED is gonna be better.
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post #10 of 21 (permalink) Old 07-22-2009, 04:05 AM Thread Starter
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I replaced the unit until lights can be purchased and now the heater control knob and selector switch does not seem to be working. The blower switch will cycle through all speeds but turning from hot to cold has no affect and floor to defrost does not change.

Does the system need to be reset or something?
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