Grounded

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mr2oh5

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I got a 95 swb and I put in a 2000 Yukon denali engine (5.7 vortec) trans, computer, harness, dash, bcm, steering column, and dash harness now I can't get the darn the to crank. The yukon was running and driving fine before the swap with no issues now nothing. It cranks over when I jump the relay but thats it. When I turn the key (non chipped) all I get is a click from the tc cm, the horn blows non stop, the wiper motor buzz like crazy, and I got check gage, 4wd indicator, and security light on nothing else. What have I done wrong or missed? Also, where is g200 and s204 located? Any help in the right direction will help. I'm trying to get running by the end of this month
 

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HotrodZ06

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That is strange. Did you use all of the Yukon harnesses, or do you use some of the 95 harnesses as well? My thought on the later is maybe two different year harnesses even though they plug together may be pinned differently.
 

mr2oh5

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That is strange. Did you use all of the Yukon harnesses, or do you use some of the 95 harnesses as well? My thought on the later is maybe two different year harnesses even though they plug together may be pinned differently.
I used the engine bay harness the body harness the harness behind the dash the ecm and bcm. But when I went back to look at the connections I see I left out the c305 connector and I've already scrapped the donor truck. Now I'm trying to find the pin out for both c304 and c305 to see if I can splice them together somehow. Those connectors sat above the bcm in the center console
 

mr2oh5

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That is strange. Did you use all of the Yukon harnesses, or do you use some of the 95 harnesses as well? My thought on the later is maybe two different year harnesses even though they plug together may be pinned differently.
 

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mr2oh5

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Check the grounds and battery cables first to cross them off the list.

On my 2003 truck the computer told the starter when to go.

Turning the key just told the computer to do the job.
I was thinking about ground connections because I have power just no command from the switch.
 

HotrodZ06

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HotrodZ06

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