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Old 02-04-2007, 12:55 AM   #1
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Default Alternator Connections - Voltage Regulator Type

Does anyone know the Pin Connectors (PLFS) and there purpose for an Alternator on a '99 Bonn SSEI. I need to know if the (I/F) Pin is an I-Type or F-Type.

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Old 02-04-2007, 01:36 PM   #2
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This is a CS130D 140Amp Alternator if that Helps.
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Old 02-04-2007, 03:50 PM   #3
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The connection is for the regulated signal from the PCM to manage the field in the alternator for the proper output.

I'm out the door to a SuperBowl party, so I don't have time to give you the pinouts. Someone with a FSM will chime in shortly.
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Old 02-04-2007, 05:58 PM   #4
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Looking at the end of the connector, with the tab on top.

First cavity on left is not used.
Second cavity from left is a red wire Generator Field Duty Signal
Third cavity is a gray wire Genertor Output - Regulator Reference Voltage
Fourth cavity is not used.
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Old 02-05-2007, 09:36 AM   #5
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Thanks Bill.

Both of those wires go to the PCM. One for control, the other for feedback.
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Old 02-05-2007, 12:41 PM   #6
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Thanks Guys, and "ALL Due Respect to you that are in the Know",but I still didn't get my question answered. I know that the "I/F" pin does not get used on a Bonneville, but it does get used on other GM Cars. I need to know if I can supply 12V to it from the PCM or If it sends the 12V'* to the PCM. I could destroy the Regulator if I don't know this first.

If I put it on a '96 Pontiac Sunfire will it burn to the Ground ? LOL...
Thanks....
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Old 02-05-2007, 01:53 PM   #7
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L is the far left. I believe F was the third. I can check for you tonight. Sorry, should have referenced the pin labels.
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Old 02-05-2007, 10:40 PM   #8
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Ok.. Wtih tab at top looking straight at the pins of the connector.

P L F *

F is Gray Generator field duty signal
L is red Generator output - Regulator reference voltage
The other two appear to be empty
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Old 02-05-2007, 11:33 PM   #9
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Go to the following link (page 39 - 4th paragraph) )and you'll see why I'm wanting to know more than the Pins tell me here. The Sunfire uses the F and L pins. The Bonneville uses the L and * pins. The * senses for the Bonny and I believe the F senses for the Sunfire. L is only for the Lamp light. You're going to make me devulge my secret if this keeps going. Thanks for staying with me on this...

http://oljeep.com/gw/alt/Alternator_Theory.html
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Old 02-06-2007, 12:29 AM   #10
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We already know your secret, and it'* been done before. Even in a cavalier and a 2-door Grand Am.

So tell us SPECIFICALLY what you're starting with, or we can't help you. What you have, what you're trying to do. Secrets don't help in troubleshooting.
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