Overhead Compass/Temp Fix

I am a new member and used a thread about repairing the compass/temp display. Thank you to the individual who posted the first answer. The suggested repair worked great! It took me longer to sign up for this website and to post this than it did to make the repair. One warning. Watch those clips! they spring out and can end up anywhere! Oh yeah, one other warning. Use only resin core electronic solder. Acid core or the use of paste flx will corrode the connection and it will need a repair again!

 

This is my first time here so if I screw this up bare with me. Found replacement on eBay for around $150 and Toyota dealer price was not even close to reasonable, so I figured what have I got to loose and tried your suggestion. At first everything looked fine, the 510's looked perfect until I touched one and he fell off completely. So I soldiered it back on and just to make sure put some on the other 510 as well. Looks like crap but works perfectly, I am extremely grateful, this is a great site. Thanks again!

 

I'm the original owner of my 05 purchased in 08/2005. I have 104k miles... Display was dim and flickered but a smack would fix it. This went on for 6 or so months till it finally cropped out a little over a month ago. I'll do this tomorrow night.

 

Well, after doing this mod 3-times over the last couple of years, I think I cooked the board. I'll start scanning all 73-pages of this thread, but in the meantime, can someone supply my the part number for that board, so I can attempt to purchase a new one? Thanks in advance.

 

By the way, I have a 2007 access cab, if that matters.

 

Looks like the part number for my '07 is 83290-04030. Does anyone know if there's any soldering involved with going this route? What exactly is that part, just the circuit board?

 

$121.46 shipped is the cheapest I've found so far for the upgraded component. Apparently, it includes the entire assembly, including board, smoked-lens, etc. It makes for a simple swap-out, by removing those 3-screws and replacing with this module. I think I'll go this route, but will continue to price-shop.

 

$116.99 shipped is the lowest so far.

 

Went with the $116.99 shipped one from eBay. It's brand new and the updated version. It will be nice not having to dick around with this anymore. Considering I'm not the best with a soldering iron, this was the right thing for me.

 

Received, installed, set and calibrated. I'm a happy camper. It's great that you guys who can solder are doing OK with this fix. It worked for me for sometime, but I think I burnt it up with the last attempted fix. That's on me. That's why I went this route. Hats off to all you guys that make this possible. The tips, techniques and knowledge your have and share is awesome.

 

My Temp Gauge/Compass quit too.
Disassembly revealed that one 510 was nearly MIA.



Using the info in this thread, I removed it and tacked it back in place.
Then added more solder to BOTH 510s so that they should stay.

Thank you.

 

The 510 resistors looked fine to naked eye. They even looked good under a magnifine glass but they were the problem. After dissassembly plug back in vehicle and press on the 510's. Started working again. Soldered all 4 places and saved myself $30 to $100 by doing it myself.
THANK YOU - to pioneers who first encounter the problem, write it down and post it here.

 

just had to do this to mine yesterday !!! thanks for the write up !

 

Mine is acting weird. In winter (Chicago), it won't work. No display. Just a few weeks ago, when the temps climbed back up to 60's, it started working again. :/ Not sure if I should yank it out to do this fix or not.

 

i would it would't hurt !

 

Yank it and apply solder to both sides of both the 510 resistors. That will fix it. Watch for those clips, they spring out all over the place.

 

Roger that! Thanks for the tip!

 

That is *how* mine began!
Last fall, it was intermittent.
This spring, dead!

 

I drove my new to me Tacoma home today and immediately took off the overhead compass/temp sensor. I tackled my first chip soldering today with the $3.99 gun from harbor freight. We'll see how it holds up!

 

Simply pull the unit and solder the 510s. I suspect the cold weather shrinks the contacts creating a disconnect and your heater doesn't warm it long enough to reestablish the connection until the weather warms. As others stated, it doesn't hurt to do the repair.

On soldering, the key is using a pencil point soldering iron. Cheap at Harbor Freight and other places. Place a dab of solder on the tip of the iron and touch that to the solder joint until it melts and reforms. I like to waft back and forth over the joint rather that apply too much heat in one place. Resistors are hardier than other components but none like too much heat. Don't "bridge" other circuits with too much solder.