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Mustang_289 · 09-15-2005, 07:32 AM

there are two wires you can put a DVM on, I believe the yellow wire should have a constant 12v always, as this is how the alt monitors the battery to switch on or not. The other line, I think it's a white wire, should have a 12v when the ignition switch is in the run (not start) position.

09-15-2005, 07:32 AM	#1
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	Re: Are alt. wires any good there are two wires you can put a DVM on, I believe the yellow wire should have a constant 12v always, as this is how the alt monitors the battery to switch on or not. The other line, I think it's a white wire, should have a 12v when the ignition switch is in the run (not start) position.