starter wiring with truck fuseblock
03-06-2012, 05:45 PM
#1
Staging Lane
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starter wiring with truck fuseblock I'm trying to find out what I need to hook my Jeep's starter "signal" wire to on the underhood fusebox.
If i touch it to the the big purple wire on C2 I get the starter to click (battery was low).
This is for a 2003 Express 3500 LQ4/4L80E with modified stock harness. Fuse block is out of a 04 tahoe....i think.
If i touch it to the the big purple wire on C2 I get the starter to click (battery was low).
This is for a 2003 Express 3500 LQ4/4L80E with modified stock harness. Fuse block is out of a 04 tahoe....i think.
03-06-2012, 08:06 PM
#2
On The Tree
The purple wire you are talking about is in the "engine" harness, correct? It should be in cavity D 11 of this plugin. Assuming you have an 4l60 or 80 auto, and are using the transmission Neutral Safety Switch, you need the following:
1. Power to the fuseblock, and
2. verify the Black wire in Cavity D 12 of the "engine" harness is grounded.
All you need to do then is provide "starting" power to Pin C 10 of the C1 connector (the connector block that would run back into the cab) When "power" is applied to the C 10 pin, this energizes the starting relay of the underhood block and will cause the starter to run.
Hope this helps.
1. Power to the fuseblock, and
2. verify the Black wire in Cavity D 12 of the "engine" harness is grounded.
All you need to do then is provide "starting" power to Pin C 10 of the C1 connector (the connector block that would run back into the cab) When "power" is applied to the C 10 pin, this energizes the starting relay of the underhood block and will cause the starter to run.
Hope this helps.
Last edited by RicOtt; 03-06-2012 at 08:16 PM.
03-07-2012, 12:01 AM
#4
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Well, the purple/white wire from C1 got it to work. It was in position A11. I think I saw a thread mentioning that it was a purple/white wire, and there's only one in the C1 connector.
She cranks! But I'm only getting 0.2v going to the grey wire going to the fuel pump. So I jumpered 12v to the pump and listened for it to run. No fuel leaks (took the rails off to fill it with Seafoam a couple months ago to help loosen up the injectors).
Tomorrow I'll try and figure out the voltage to the fuel pump. I also need to get my battery replaced.
She cranks! But I'm only getting 0.2v going to the grey wire going to the fuel pump. So I jumpered 12v to the pump and listened for it to run. No fuel leaks (took the rails off to fill it with Seafoam a couple months ago to help loosen up the injectors).
Tomorrow I'll try and figure out the voltage to the fuel pump. I also need to get my battery replaced.
