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Old 10-27-2009, 10:27 PM
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1988 GM alternator indicator wire ?




which wire on this 1988 GM alt would be the one that is for the guage or charge light in the dash?

i need to retrofit it onto a 93 toyota i have



thanks!

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Old 10-30-2009, 02:41 PM
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The F terminal on the CS130 goes to the CHARGE indicator light. The S terminal (larger red wire) goes to +12v, as does the post. Ignore the other wires/terminals.
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Old 10-31-2009, 04:18 PM
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ok thanks! s its called a CS130 hmm interesting...
130mm?


the F wire is pink

i dont have to connect the small brown L wire to anything ?

Last edited by fast68; 10-31-2009 at 04:28 PM.
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Old 11-07-2009, 08:53 AM
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There are a lot of wiring articles out there for the CS130, but the text copied below his is one of the shorter explanations.

Bottom line:
I/F - not needed
P - not used
L - to dash light
S - to battery voltage



Bruce

------------------------------

"P" Terminal (Phase Connection) - This terminal sends a signal to a relay, frequency sensing tachometer, or computer indicating alternator speed. This terminal may not be used - this is normal.
"L" Terminal (Charge Light) - This terminal is fed from the ignition through the charge light on the dash. This connection turns the alternator "on". Without a signal to turn "on", the alternator will not charge. However the "I" terminal may be used to turn this alternator "on", as described, instead of the "L" terminal. Please note that if there is a connection on the "I" terminal there will be NO connection on the "L" terminal.
"I" Terminal (Ignition) - This terminal is fed directly from the ignition switch to turn the alternator "on". Without a signal to turn the alternator "on", the alternator will not charge. However the "L" terminal may be used to turn this alternator "on", as described, instead of the "I" terminal. Please note that if there is a connection on the "L" terminal there will be NO connection on the "I" terminal. If there is a connection on the "L" terminal AND the "I" Terminal THEN the "I" terminal is NOT an "I" terminal but an "F" terminal (confused yet?).
"F" Terminal (Field Monitor) - This terminal sends a signal to the computer telling it how much field current is flowing (therefore the computer knows how hard the alternator is working). This terminal is not always used AND can only be used if the alternator is turned on by the "L" terminal.
"S" Terminal (Battery Sense Connection) - This terminal is larger than the others and provides the alternator with a precise battery voltage reading however, this connection may not used. When not used, the alternator will automatically sense battery voltage at the battery post.
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Old 11-07-2009, 08:57 AM
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Here's a link to a more complete reference for alternator wiring.

http://oljeep.com/gw/alt/edge_Altern...html#Section_2

Bruce
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