Alternator wiring again!
07-31-2012, 04:11 PM
#1
Teching In
Thread Starter
Join Date: Sep 2010
Location: Dorset, UK
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Alternator wiring again! I've searched the forum but can't find the answer i'm looking for. Some of you might know that i've fitted an 05 ls1 and t56 in a tvr sports car.
The alternator is mitsubishi item,two wire plug. I've put battery +12v to one of the pins which pumps the battery voltage to 14.4v when running but I seem to be getting a +2.5v from the other pin that goes to the indicator light on the dash until I disconnect the plug on the alternator. Could anyone give me any ideas?
Regards Simon
The alternator is mitsubishi item,two wire plug. I've put battery +12v to one of the pins which pumps the battery voltage to 14.4v when running but I seem to be getting a +2.5v from the other pin that goes to the indicator light on the dash until I disconnect the plug on the alternator. Could anyone give me any ideas?
Regards Simon
08-01-2012, 08:19 PM
#3
The other pin is the "field duty signal wire" that should connect to your ECM. You shouldn't need a indicator light on the dash as the ECM will set a code if there is a problem with the charging system (assuming the field duty wire is connected to the ECM.
