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Old 07-26-2008, 08:45 PM
cici235 cici235 is offline
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Join Date: Nov 2007
Location: Central TX
Posts: 9
Did that.

Great web sight and very helpful. Everything checks out fine except there is no voltage coming from the 5 GP pins. In other words I know it is relay related. The only problem is it's brand new.

I get voltage from the battery to the large gauge wire that is bolted to the relay. The fuse checks our fine, voltage on both sides. Still no voltage to the 5 pins.

What this boils down to is the 4 pin wiring harness doing what it is supposed to do.

The four pins according to my wiring diagram (from a manual I payed way to much for).

Terminal 50 Cranking input. I believe it is from the starter.
Terminal 15 is from the run start input.
Terminal 31 Looks like the ground wire.
Terminal LA I believe this is the pin that sends info back to Pre glow lamp indicator yellow light.

I get a full 12 Plus volts from terminal 15 while the key is in in the position just before you turn over the car.

Terminal 50 provides only 10.5 volts. Could this be the problem? Or is the starter pulling the voltage down?
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