1988RedT2
1988RedT2 MegaDork
2/4/25 2:54 p.m.

So, this is like the third time I am faced with an inoperative drivers side window.  Window went down, but it can't get up.  I lift the switch and... nothing.  On the two previous times I've gone in and pulled the door card and the switch, I find that there is some evidence of arcing, carbon desposits, etc.  Clean it up and it works.  For like 20 up-down cycles. 

I haven't been able to find the part new, or I'd pay whatever crazy price they want.  So my only hope is either a used one, or the real solution.   That being to wire a relay so the contacts don't take all the juice.

Anything I'm overlooking?  Anybody got one of these switches they could part with?

wvumtnbkr
wvumtnbkr GRM+ Memberand UltimaDork
2/4/25 3:45 p.m.

I don't have one of those switches anymore, but I can say that all of the s4 electric window switches should be the same part number.  It's not a turbo specific part iirc.

I'd just go with the relay.  That is the overall solution to the issue.  Keep in mind that you will need more than 1 relay for each window function.  Again, iirc.

 

Oh, I forgot.  Alot of times the high current is because the lubricant for the window has turned into a hard plastic like substance.  Using the correct lubricant can take a large load off of the window operation.

1988RedT2
1988RedT2 MegaDork
2/4/25 4:04 p.m.

Hmmm.  I see some of these on ebay for reasonable money.  I may go that route for now.  Maybe shoot some silicone lube on the regulator mechanism.

sevenracer
sevenracer HalfDork
2/5/25 8:54 p.m.

I feel your pain, I have 1982 rx7 window switches that are intermittent, even after cleaning the inner contacts.

Maybe some Deoxit gold lube would give them a little more life?

 

Saw this on Amazon - not clear if it is a reman or a copy of the design. The description says it fits rx7's from 1989-2003, seems unlikely that FC's and FD's would use the same part.

https://www.amazon.com/Mazda-Master-Window-Switch-1993-2002/dp/B07CQ6QCJ2/ref=asc_df_B07CQ6QCJ2?mcid=23322d157c8b334e8de911c49e0b2886&tag=hyprod-20&linkCode=df0&hvadid=693454999561&hvpos=&hvnetw=g&hvrand=2745572546422516354&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9191426&hvtargid=pla-568134939336&psc=1

Flynlow
Flynlow Dork
2/5/25 9:21 p.m.

I bought my FD's new switch through these guys, they appear to have what you're looking for:

 

https://www.atkinsrotary.com/86-88-Rx7-Left-Power-Window-Switch-FB05-66-350A.html

1988RedT2
1988RedT2 MegaDork
2/5/25 9:52 p.m.
Flynlow said:

I bought my FD's new switch through these guys, they appear to have what you're looking for:

 

https://www.atkinsrotary.com/86-88-Rx7-Left-Power-Window-Switch-FB05-66-350A.html

Yeah, that's it.  I have one coming from Japan for just over half that much.  For a hunnerd bucks, I can wait.

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