Saturn 3 Door Coupes SC1 and SC2

Alternator

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  #1  
Old 01-22-2009 | 05:25 PM
geezerw's Avatar
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ripped the wires from the connector on the alt. Anyone have a wiring diagram ? plug reads S F L P need the color code for the F and L pins

93 sc2
thanks
john

Edited by: geezerw
 
  #2  
Old 01-22-2009 | 06:15 PM
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Well, here is what my notes say:


Three wires are involved in that connector ... BRN-WHT wire should connect to terminal F; the BRN wire should connect to terminal L; the remaining wire should connect to terminal P. Terminal S is unused.
 
  #3  
Old 01-22-2009 | 06:30 PM
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only have brn-wht and brn in the harness ? so will go with them.



Thanks [img]smileys/smiley1.gif[/img]
john

 
  #4  
Old 01-23-2009 | 09:54 PM
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The third wire is the output wire from the alternator back to the battery ...
 
  #5  
Old 01-25-2009 | 11:58 AM
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1991-1995:

S - Unused
F - Brown/White -Ignition
L - Brown - Battery Charge Tell Tale
P - Unused

Charging Circuit Operation:
The battery supplies voltage to the generator at all times. During engine start-up, the I/P cluster performs a bulb check by illuminating charge telltale for three seconds. The PCM supplies 5 volts to the generator L-terminal to initiate charging. The system charges the battery and provides power to the vehicle electrical devices. The PCM can increase idle speed to boost generator output if the battery voltage drops below specification. If the charging circuit malfunctions, the PCM signals the I/P cluster to illuminate the charge telltale.
The only other wire involved with the alternator is the fusable link that goes from the charging terminal on the alternator to the constant positive on the starter. Then from there it goes off to the battery.Edited by: Low Saturn
 
  #6  
Old 01-25-2009 | 12:11 PM
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Thanks for the clarification there, Mike ...


You said much more clearly what I was trying to say
 
  #7  
Old 01-25-2009 | 12:20 PM
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Its the least I could do sitting here on a lazy Sunday morning in my underwear.
 
  #8  
Old 01-28-2009 | 10:40 AM
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Got a replacement connector from a wrecking yard. Key on I have bat voltage on both pins OK ?


john

 
  #9  
Old 01-28-2009 | 10:44 AM
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Sounds good. Does the car start?
 
  #10  
Old 01-28-2009 | 11:39 AM
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Yup just making sure before installing new alt.

thanks
john

 
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