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Showing results for tags '4wd switch wiring'.
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1991 Loyale Wagon 4wd MT So my 4wd switch has failed for the third time. My local Junkyards, near Salem Oregon often have parts available. I want to try a different solution. My plan to is to install a 3 way toggle in the dash as a replacement for the stick shift button. And then choose an awesome replacement shift knob. I have researched but not been able to find a diagram of this system. I did find some 1988 Justy stuff but only the vacuum/mechanical, not the electrical. Note: Direct vacuum to each diaphragm line does work and actuate the 4wd , I heard the clunk, and saw the green 4WD light on the dash. I am looking for the wiring diagram. I want to know this: Switch wire -3 - white , red, yellow wire from firewall - 4 - blue, green/yellow, black, black (2) . plug:plug to vacuum switches black black, white white. vacuum switches 1 has 2 black , 1 has 2 white.