Battery not charging message but it is sometimes

[rockola1971]

From what I found the 04 model should only have 2 wires going to the alternator Pins B and C then of course the BAT terminal as well. You can see in the schematic what B and C go to. What is the purpose or need for the bulb to drop voltage on the 3rd wire? Brown according the schematic should goto your PCM and that is essentially the signal to the voltmeter. So what is your extra wires hooked too and which terminal is sre they coming from? A or D? @Doubeleive @EfiniMotorsport

 

[EfiniMotorsport]

When looking at the alternator from the front the left 3 pins have wires. The second pin from the left is the brown wire.

 

[EfiniMotorsport]

I'll have to see what the other 2 wire colors are when I get home. I don't remember what the production month is or if it would be different on the 03

 

[rockola1971]

I'll have to see what the other 2 wire colors are when I get home. I don't remember what the production month is or if it would be different on the 03

Where is "03" coming from? Your first post states your vehicle is a 04.

 

[EfiniMotorsport]

I don't know if it's an early 04 that has something held over from 03, wiring wise. The alternator has a 4 pin 3 wire plug.