alternator wire question
Thread Starter
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
alternator wire question
I have a brown wire that went from the Alternator up towards the coolant fan relay, then splits off. One goes to the relay and the other inside. I hooked the wire that went inside up to a switched 12 volt (to turn the Alternator on?). I can follow the wire on diagrams that goes into a coolant fan relay, but then where does it go, ignition switched?
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Joined: Sep 2003
Posts: 6,127
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
The tan/white (brown) wire that comes off the alternator does split off. One wire goes to pin "D" of the coolant fan relay and the other wire goes to the "FP-FAN" fuse on the fuse panel which is hot in the run position.
TGO Supporter
Joined: Sep 2003
Posts: 6,127
Likes: 11
From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
If you are referring to the blower motor for the AC/Heater, it is on a seperate circuit and gets its power from the HTR-A/C fuse for the A/C control head and a fusible link at the starter solenoid provides power for the blower motor.
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