Window wiring question/s

Gotta love that wiring . . .
Post Reply
warrenrhen
Posts: 28
Joined: Fri Nov 13, 2020 10:09 pm
Your car is a: 1979 fiat 124 spider
Location: Apache Junction AZ

Window wiring question/s

Post by warrenrhen »

So my 79 spider windows work slowly. Nothing new there. I searched the forum, looked at various diagrams and I'll admit I have a hard time understanding window diagrams. I was looking for a window wiring setup that would use the switch to trigger the relay and then have the full 12 volts going to the motor. And I envisioned a separate relay for each window mtr. I have trouble following how they use one relay for both windows. Can someone help me or explain how the stock system works. Apparently not too well if mine is an indication of how the stock system works.
Cheers, Warren
79 124 spider
18 Dodge Charger R/T
20 Vespa 300 GTS HPE
spider2081
Patron 2024
Patron 2024
Posts: 3009
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: Window wiring question/s

Post by spider2081 »

And I envisioned a separate relay for each window mtr.
I believe the relay modification for electric windows consists of 2 relays for each window motor. It can be a fairly complicated circuit to understand.

The window speed can sometimes be improved by properly adjusting the window channels, making sure the capstan cable tension properly adjusted, the Idler pulleys are all free and lubricated and that at the window switches full voltage is present when the switch is activated. The switch internal contacts often cause slow window operation. Lubricating the window channel felts with a silicone spray can also help.
warrenrhen
Posts: 28
Joined: Fri Nov 13, 2020 10:09 pm
Your car is a: 1979 fiat 124 spider
Location: Apache Junction AZ

Re: Window wiring question/s

Post by warrenrhen »

Is there a link to this relay modification that uses 2 relays per window? Thanks for the tips on the other maintenance items
Cheers, Warren
79 124 spider
18 Dodge Charger R/T
20 Vespa 300 GTS HPE
spider2081
Patron 2024
Patron 2024
Posts: 3009
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: Window wiring question/s

Post by spider2081 »

Post Reply