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Old 03-29-2006, 04:08 AM   #1
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ScanGauge Mod Tutorial

Here we go.

Take the overhead console down by taking out the screw behind the sunglass holder, then pull down on the front part, near the mirror. It will pop loose.

Then unscrew the temp/compass unit.


Pop the lens off and take it apart


Take the ScanGauge apart by just unscrewing all the screws. Then disconnect the screen from the circuit board by flipping up a little brown lever where the ribbon cable secures to the circuit board. Then you can pull the ribbon out of the connector.


Use a Dremmel with a cut off wheel to grind off this little nub on the lens


It should look like this. Doing this will let the screen sit flat against the lens. Also put a small bead of black silicone adhesive on this edge to hold the screen.


Cut a slot in the side of the lens for the wires to pass through


Make sure the lens and screen is clean and then put it in place.


Black out the surrounding area with some tape. I used Gaffers Tape. It's like duct tape, except it's easy to work with, and it won't leave sticky residue behind if you peel it off. I used an Exacto knife to make it all fit nice. This step takes some time.


You need this white piece that was inside the ScanGauge. It disperses the light from the LEDs, for the backlit display. It gives it a more even look.


Cut the top tabs off and put some silicone on the top and bottom edges.


Put it in place behind the screen.


Cut the two nubbies off of this piece of the temp/compass case


Next you need to cut the edges of the circuit board, so it will fit in the case. The circuit board has to fit in the case behind the screen because the circuit board has the LEDs on it that light up the screen. I used a Dremmel and cut off wheel. I got close to the circuit traces, but didn't cut 'em. If you do, it's hard to fix.


I cut a piece of ABS plastic to make a base for the Home button.


I drilled an 11/64" hole in it then threaded the switch into the plastic and glued the plate to the case. I used these switches from Radio Shack. Take the nut and washer off of the switch. Use a pair of pliers to twist the switch into the 11/64" hole. It will thread itself.


Drill holes in this peice. I started with a 1/16" bit and then worked my way up to an 11/64" bit. Then I cleaned up the edges of the holes with an Exacto knife.


So that you can remotely mount the switches you have to extend the connections from the switches on the board. I just soldered right onto the terminals. You only need to solder on one side of the switch. I used 22 gauge wire.


After you have done all the soldering, put some big globs of silicone on the bottom of the circuit board and put the circuit board in place


Drill 4 holes in the lens for the switches to stick through.


Once the silicone has dried and the circuit board is secure, connect the ribbon cable, and run your wires through the slot in the lens. Label which pair of wires goes to which switch. Then snap it all back together.


Next you have to solder the wires to the switches.


I used heat shrink and liquid electrical tape to keep the solder joints well insulated and protected.


Then just screw the temp/compass case back in place. Then remove the A-pillar and run the cable down to the ODB2 plug under the dash. There is just enough cable to make it.





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Last edited by Pb : 03-29-2006 at 09:20 PM.
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Old 03-29-2006, 08:25 AM   #2
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dude, that came out awesome!!!

well done!
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Old 03-29-2006, 08:38 AM   #3
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Show off!

Excellent write up! Can't wait for the final pictures.

Last edited by BlueSport : 03-29-2006 at 08:39 AM.
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Old 03-29-2006, 08:42 AM   #4
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Awesome job, Pb!! The final product looks so clean. Now, anyone know where I can get an overhead temp/compass console?? Thanks.
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Old 03-29-2006, 09:53 AM   #5
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Wow!
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Old 03-29-2006, 10:01 AM   #6
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Pb's hardcore as fuck!


Yeah dude, you need a carputer.
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Old 03-29-2006, 10:31 AM   #7
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damn, that's bad ass. makes me wish i had the compass/temp in mine...
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Old 03-29-2006, 11:49 AM   #8
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Very nice, this is your best mod yet (Tacoma related anyways.) I think I might actually put this one on my list, the only thing that worries me is cutting the board, easy way to blow $115 bucks in about 1/100th of a second.
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Old 03-29-2006, 11:55 AM   #9
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Quote:
Originally Posted by dorkman
Very nice, this is your best mod yet (Tacoma related anyways.) I think I might actually put this one on my list, the only thing that worries me is cutting the board, easy way to blow $115 bucks in about 1/100th of a second.
With a Dremmel cut-off wheel it slices through the board pretty easy. Just set the speed semi-fast, and have a steady hand.

A cut circuit board trace can be fixed with solder if you're good with a soldering iron.

For some of the soldering in this mod you might want to get a long, fine tip for your soldering iron if you don't have one. I use a Weller soldering station and pen-style iron.
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Old 03-29-2006, 12:18 PM   #10
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Nice job, as usual.

I don't have the compass but those pictures gave me some ideas about what I can do.

I'm sure Linear-Logic is very happy you posted their "naked" board on the internet. The Chinese are reverse-engineering it as we speak. There will be a $40 version at Walmart in three weeks made by "Logic-Linear".
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Old 03-29-2006, 12:21 PM   #11
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Quote:
Originally Posted by boone

I'm sure Linear-Logic is very happy you posted their "naked" board on the internet. The Chinese are reverse-engineering it as we speak. There will be a $40 version at Walmart in three weeks made by "Logic-Linear".


Yeah, there isn't really alot to the Scan Gauge. There is a lot of empty space inside the ScanGauge enclosure. They could have easily made it about half as big.
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Old 03-29-2006, 12:33 PM   #12
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You have to buy the whole console and it looks like the one with the compass gauge is $608. Without the compass module it's $111, but that doesn't do you any good.

They have the compass part listed but without a part number or price. It would be nice if you could just get that viewing window.
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Old 03-29-2006, 01:04 PM   #13
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Impressive.

Unfortunately, I'm planning on moving my scanguage between two vehicles. I really like the remote buttons, original pix made me think you'd kept them in the original positions


May have to buy a second scanguage sometime.
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Old 03-29-2006, 02:11 PM   #14
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I found a downside to this mod. Because of the tinted lens it's harder to see the display when it's bright outside. Even with the backlight and contrast on high.

O' well. I can see it good enough.
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Old 03-29-2006, 02:23 PM   #15
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Hey PB:

I might suggest that you contact the ScanGauge folks (www.scangauge.com) with an email containing your mod. I've spoken with them on the phone. They seem like good people, eager to consider innovations. They just might come out with a "tacoma kit" if you are persuasive enough.

Nice job on the mod. Wish I had that much time!

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