2007 Instrument Cluster Repair
May 22nd, 2013, 6:08 PM
#81
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Excellent! here is everything you could want to know about that MOSFET device
IRLL2705PBF datasheet(1/9 Pages) IRF | HEXFET POWER MOSFET ( VDSS = 55V , RDS(on) = 0.04? , ID = 3.8A )
IRLL2705PBF datasheet(1/9 Pages) IRF | HEXFET POWER MOSFET ( VDSS = 55V , RDS(on) = 0.04? , ID = 3.8A )
May 22nd, 2013, 6:23 PM
#82
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yeah its a MOSFET. i got the official wiring schematic from GM. but i cant seem to read it well enough to find the exact transistor. if i post the schematic, do any of you think you can figure out which it is?
i see a spot on the schematic where it shows PRND321 in a box, and right under that it says "Odometer" in a box. both of which are surrounded by one main box, on the side of a dashed box that contains more stuff haha hard to explain. should i post the schematic?
local electrical guy wasnt even willing to look at it, and i havent looked for another person yet. i probably should. but havent had time yet.
i see a spot on the schematic where it shows PRND321 in a box, and right under that it says "Odometer" in a box. both of which are surrounded by one main box, on the side of a dashed box that contains more stuff haha hard to explain. should i post the schematic?
local electrical guy wasnt even willing to look at it, and i havent looked for another person yet. i probably should. but havent had time yet.
Hey RedOctober, Can you send me the schematic? This Forum is FULL of good information. Thanks everyone.
May 22nd, 2013, 9:44 PM
#83
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Whistler Yeah it looks like the the smoke escaped from your device 
( it burned up)
You are going to have to replace it... I'd check Amazon first, then maybe Newark (Newark | US - Electronic Components Distributor | Electronic Parts Distributor) they are about $1 but I don't know what their minimum is or if they sell to individuals
( it burned up)
You are going to have to replace it... I'd check Amazon first, then maybe Newark (Newark | US - Electronic Components Distributor | Electronic Parts Distributor) they are about $1 but I don't know what their minimum is or if they sell to individuals
October 16th, 2013, 5:00 PM
#88
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You guys are awesome!!!!
I believe I have a fix that,well at least worked for me. Thanks to everyone's input on here and with the help of you tube on how to remove my speedometer. One of the transistor leads on the speedo circuit board came loose between both displays (PRND321 and Odometer ). if you look hard you can see the little gap between the lead and the board in the pictures. I just put a little dab of solder on that joint and everything started working properly. I will have to say that what people are charging to repair your speedo is fair considering that you can easily screw something up if your not careful plus the added stress on working on someone else stuff. I cracked a little piece of the clear plastic lens over the speedo but you cant see it once you put everything back together. Anyway here are some pictures of what i did to fix it, use at your own risk but hopefully this will save you some money. If you do have " service tire monitor system " after you reinstall it, just start your engine for a few minutes and the message will go away and it will work properly. your correct mileage, trip, oil life meters, engine hours will be current.
You saved me ~$450-$550!!!!!!!!!!!Again, Thank You everyone, for these posts!! I finally got my DIC Cluster off and did the soldering of the chip. I did find that the solder was broken on both sides of the chip. I fixed the side near the edge and took it to the vehicle and hooked it up to test. It worked until I started to push on it a little. took it back to my little workshop and found that I had to solder the three leads on the other side.
Anyway it all came out fine. Dealer want $450 for this repair.
Anyway it all came out fine. Dealer want $450 for this repair.
Last edited by Dtown; October 16th, 2013 at 6:12 PM.
December 20th, 2013, 3:10 AM
#89
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Repair done for tahoe 2007 lt cluster panel
I would like to thank everybody on this forum, as i used all the information about the cluster panel as my odometer and gear indicator went black, no light.
i used one video on youtube give detail how to remove your cluster panel nicely and easy
then when i took it out ,removing meter needles were difficult , so i use regular fork (for food, but thin one), then it was very easy to take them out.
i found that the mosfit transistor is like burn at left side with a small prutruding black area.
i took it to local electronic shop, ( i am in a small city in saudi arabia) we were not able to find same, so he told me that mosfit acts as switch and he got another mosfit transistor from old board he had , but bigger is size,so he fix only two legs and the heat sink soldier it with a copper wire to board (as it is not fit the old one).
then i test it pcb only and it was light !!!! in my gear indicator and odometer.
i went home and reassemble the cluster panel and fix it to the car,
keep the lens do not fix it at first, fix it in the car and check needle positions, if need change do it, then fix the lens.
i write this after 10 days of testing it and every thing is fine,
message is you can do it yourself, and you can use other mosfit not the same one as it acts as switch.
thanks again for every body, and i am ready for any help.
i used one video on youtube give detail how to remove your cluster panel nicely and easy
i found that the mosfit transistor is like burn at left side with a small prutruding black area.
i took it to local electronic shop, ( i am in a small city in saudi arabia) we were not able to find same, so he told me that mosfit acts as switch and he got another mosfit transistor from old board he had , but bigger is size,so he fix only two legs and the heat sink soldier it with a copper wire to board (as it is not fit the old one).
then i test it pcb only and it was light !!!! in my gear indicator and odometer.
i went home and reassemble the cluster panel and fix it to the car,
keep the lens do not fix it at first, fix it in the car and check needle positions, if need change do it, then fix the lens.
i write this after 10 days of testing it and every thing is fine,
message is you can do it yourself, and you can use other mosfit not the same one as it acts as switch.
thanks again for every body, and i am ready for any help.
