LouisO87
Newbie
ok so im in the process of wiring up my 04 5.3 ls into my 97 1500. ive got it running and most of it is done but i have a few things ive ran into. I have no clue where the ls harness came from or who made it, it was supplied with the truck when i purchased it and had never been hooked up.
#1 tcc- so coming out of the standalone fuse box their is a white 12 gauge wire thats labeled "brake". if i hook said wire to the purple wire that has constant power but loses power when brake is applied its not right. with or without the wire hooked up truck shifts into 2nd pretty quick and then will stall out when brake is applied. So im wondering if this wire should possibly be tied onto the wire that gets power when brake is applied? If trace pin #33 on the blue ecm plug to see where it goes thru the harness it goes to the supplied ls fuse block. WITHOUT hooking up the white wire labeled "brake switch" the purple at pin 33 has constant power with or without the brakes being applied. from my understanding pin 33 should go from the ecm to the purple wire on the brake switch. I pulled the relay labeled tcc and the purple wire at 33 lost power. so i left the relay out and ran a jumper from 33 to the purple on my brake switch. it has power with key on at no power when brake is pushed. tried it out and it does the same thing shifts thru gears then when you stop it stalls out like how a standard would if you didnt push the clutch.
tachs not working but have it figured out just need to get a resistor.
ive researched and researched and researched but have yet to find another harness like mine that has the manual with it or anyone else thats ran into this same problem
#1 tcc- so coming out of the standalone fuse box their is a white 12 gauge wire thats labeled "brake". if i hook said wire to the purple wire that has constant power but loses power when brake is applied its not right. with or without the wire hooked up truck shifts into 2nd pretty quick and then will stall out when brake is applied. So im wondering if this wire should possibly be tied onto the wire that gets power when brake is applied? If trace pin #33 on the blue ecm plug to see where it goes thru the harness it goes to the supplied ls fuse block. WITHOUT hooking up the white wire labeled "brake switch" the purple at pin 33 has constant power with or without the brakes being applied. from my understanding pin 33 should go from the ecm to the purple wire on the brake switch. I pulled the relay labeled tcc and the purple wire at 33 lost power. so i left the relay out and ran a jumper from 33 to the purple on my brake switch. it has power with key on at no power when brake is pushed. tried it out and it does the same thing shifts thru gears then when you stop it stalls out like how a standard would if you didnt push the clutch.
tachs not working but have it figured out just need to get a resistor.
ive researched and researched and researched but have yet to find another harness like mine that has the manual with it or anyone else thats ran into this same problem
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