Alternator excitement issue
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From: F' Reno I live in Sparks
Alternator excitement issue Im having an issue with my alternator always being excited, the alternator is a truck style 4 pin unit. The factory wiring for the alternator has not been changed and the ecu controlls the alternator fine with no check codes.
I did a volt test and am getting 2.75 volts on the brown indicator light wire when the ignition is off, if I disconnect this wire the alternator is no longer excited. There is no voltage on the field duty cycle wire.
Help!
I did a volt test and am getting 2.75 volts on the brown indicator light wire when the ignition is off, if I disconnect this wire the alternator is no longer excited. There is no voltage on the field duty cycle wire.
Help!
First, I have to say that I'm not familiar with the truck style alt.
Does having that 2.5v (exciter) cause a normal charging voltage (say, 13 to 14.5v) at the battery? I was under the impression that the normal exciter voltage range was between 4 to 9 volts, and any level under the 4v was not enough to cause charging voltage.
Does having that 2.5v (exciter) cause a normal charging voltage (say, 13 to 14.5v) at the battery? I was under the impression that the normal exciter voltage range was between 4 to 9 volts, and any level under the 4v was not enough to cause charging voltage.
Thread Starter
11 Second Club
iTrader: (1)
Joined: Apr 2004
Posts: 590
Likes: 1
From: F' Reno I live in Sparks
First, I have to say that I'm not familiar with the truck style alt.
Does having that 2.5v (exciter) cause a normal charging voltage (say, 13 to 14.5v) at the battery? I was under the impression that the normal exciter voltage range was between 4 to 9 volts, and any level under the 4v was not enough to cause charging voltage.
Does having that 2.5v (exciter) cause a normal charging voltage (say, 13 to 14.5v) at the battery? I was under the impression that the normal exciter voltage range was between 4 to 9 volts, and any level under the 4v was not enough to cause charging voltage.
