battery not charging. exciter wire? help please?
01-03-2004, 11:58 PM
#1
On The Tree
Thread Starter
Join Date: Dec 2003
Location: Little Rock, AR
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
battery not charging. exciter wire? help please? my car is a 99 TA. I have limited my charging problem to this little wire that plugs into the top of the alternator, I believe its called the exciter wire, when the key is on, its supposed to put a 12V charge to the alternator to "activate" it and allow it to charge the battery. The problem is that the wire isnt sending the 12V charge that its supposed to. I hooked a circuit tester up to it to find out. I had my alternator checked, and replaced the battery, so this wire is all the only thing it can possibly be. Where exactly does it go to??? a fuse? the ignition key??? the wire doesnt appear to be cut or anything. PLEASE HELP
01-04-2004, 12:57 PM
#2
wrencher
iTrader: (2)
Join Date: Aug 2002
Location: Chicagoland
Posts: 4,762
Likes: 0
Received 0 Likes
on
0 Posts
The PCM excites the regulator for charging.
You have to be careful what you hook up to that wire , like a test light= no-no.
When the alternator was tested was it with the proper equipment?
It takes a different input to get LS1 style alternators to charge.
It is not a costant voltage it is a modulated one.
Can you scan the PCM for codes & it's data stream?
You have to be careful what you hook up to that wire , like a test light= no-no.
When the alternator was tested was it with the proper equipment?
It takes a different input to get LS1 style alternators to charge.
It is not a costant voltage it is a modulated one.
Can you scan the PCM for codes & it's data stream?
