91 LS400 Altenator

scriv123

New Member
I have a LS400 engine going into a Cobra - does anyone know what the three wires do that go into the small ROUND altenator plug. I'm trying to pick up an earth that completes the circuit on my ignition light (should then lose earth as altenator runs to put ign light out?) Help!!
 

scriv123

New Member
I need to know what the wires do - don't have the female plug just the three male terminals on the Alt. None seem to provide an earth for the ign light circuit.
Just need a way to control the ign charge light. These usually pick up an earth from altenator that drops when the alt is turning / charging - and light goes out.
 

Bushwhacker

Member
I need to know what the wires do - don't have the female plug just the three male terminals on the Alt. None seem to provide an earth for the ign light circuit.
Just need a way to control the ign charge light. These usually pick up an earth from altenator that drops when the alt is turning / charging - and light goes out.

Here you go......
 
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