3 wire switch to new 5 wire

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=55570
Printed Date: July 05, 2025 at 4:40 PM

Topic: 3 wire switch to new 5 wire

Posted By: Emperor62
Subject: 3 wire switch to new 5 wire
Date Posted: May 11, 2005 at 8:55 PM

I bought a new 5 wire type power window system for my 62 impala, I want to use the old style (NOS) switchs. I found a problem, the old switchs have a 12 v power wire, up wire, and a down wire. 3 wires while the pwr window setup uses 5 wires. Someone told me to use two relays to make them work on the system. Any ideas on what relay setup to use? Appreciate it

Replies:

Posted By: Ween
Date Posted: May 11, 2005 at 9:20 PM

hi,

use this......https://www.the12volt.com/doorlocks/page3.asp

scroll down to actuators/ reverse polarity.

leads of motors go to terminals 30 labelled actuator. connect terminals 87a and 85 of each relay to chassis ground. terminals 86 of each relay go to the up and down (not common) terminal of your window switches. terminals 87 can be connected to same as power lead going into your switch.

hope this helps

mark

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