While it doesn't state colors....
Excerpt from a tech ref on madelectrical.com
Maybe it will help some... 

With the �THREE-WIRE� alternator model built for cars and trucks, one of the voltage regulator terminals is wired to an ignition switched OFF/ON source.  And the OFF/ON circuit may also be used to operate a warning light at the dash.  (The THREE-WIRE type can be wired with or without a warning light at the dash.  The warning light is an option�not a requirement.)

REMOTE VOLTAGE SENSING, a THREE-WIRE advantage

The other of the two plug-in wires at the SI series alternator is the �voltage-sensing� terminal for the voltage regulator.  Through the sensing-wire, the voltage regulator monitors electrical system voltage and makes adjustments to alternator output.  The regulator will adjust alternator output as needed to maintain the place where the sensing-wire is routed (at about 14.2 volts).  And the sensing-wire can be routed to a place remote from the alternator (downstream).

 

Dan McIntosh
64 Impala SS
www.alloldchevy.com

----- Original Message -----
Sent: Saturday, February 15, 2003 10:45 PM
Subject: [Chevelle-List] 3 wire alternators - OT

Hey Gang,

Well, we are finishing up the installation of a 1990 Camaro TPI 350 in our 67 Nova...We have a big problem with hooking up the alternator...Its a internal regulated alternator, with 3 wires...a red, tan/beige and black wire...does anybody know where the 3 wires hook up to??? Thanks for any help/advice

-Tim
1966 Chevelle

Reply via email to