[MR2] Door Power Window Switch

[Kurt Krueger]

-------------- Original message ----------------------
From: bob-schultz at comcast.net
>
My 91 is sitting 3200 miles from me right now on jack stands but I would be 
> interested in doing this... 
> 
The breaking off of the tabs would be easy but the diode, well, do you have a 
picture or even a description of what size diode (are they pretty much 
universal?) or the location and direction that the diode would need to be placed 
> on the PCB? 
> 
> Bob 

I'm assuming that the diode has to pass the total current for the window
motor.  In that case you need one that can withstand 12V (listed as Peak Inverse
Voltage).  Easy, most will stand 100v or more.  Then it has to pass enough
current.  I don't know how much current the motor takes.  A few amps ????

If the diode is feeding a circuit or a relay, the amp rating will be a lot
smaller.   I'm totally guessing here, but it's possible that the circuit
board has a place for the diode and a symbol that will tell you the
direction.  The spacing between the contacts will hint at the current
rating of the diode.  BTW, going too big in either PIV or current
rating won't hurt.

Hope this helps.

> 
> 
> ----- Original Message ----- 
> From: "Ken Blake" <kblake at royalmoore.com> 
> To: bob-schultz at comcast.net 
> Cc: "IMOC MR2 List" <mr2 at mr2.com> 
> Sent: Thursday, January 14, 2010 1:29:57 PM GMT -08:00 US/Canada Pacific 
> Subject: RE: [MR2] Door Power Window Switch 
> 
> 
> 
> <SNIP> 
I know that the 86.5 to 91 Supra had a simular switch that came apart rather 
> easily.One of the switches broke and I was able 
to cobble two different switches back together and I was able to turn back on 
> the Auto Up feature that some US lawyer must 
> have forced them to turn off. </SNIP> 
> 
> 
The SW2X 91-95 also have an auto-up feature that's been disabled. You can 
> re-enable it by adding a diode on the underside of 
> the pcb and cutting two plastic tabs off the back of the switch. 
> 
> Best regards, 
> 
> Ken Blake 
> Royal Moore Toyota Parts 
> Direct: (503) 693-6893 
> kblake at royalmoore.com 
> AIM: RoyalMooreToyota 
> http://www.supra411.com/forums/forumdisplay.php?f=63 
> 
> 20% off list price on Toyota and TRD parts, free shipping, and no sales tax. 
> 
> No pre-pay requirement for special orders. You pay the day you get your tracking 
> number. 
> 
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