Ok, previous owners had installed either an alarm or remote start. I was digging into the dash today to replace the motors in the instrument cluster. My fuel gauge and oil pressure gauge have been acting up.

Well I got it out and noticed they had used a parallel spice on the light blue wire. I tracked that forward and lost track of it under the fuse box beneath the hood. Does anyone know what the light blue white is for, or know where I can find a wiring diagram to figure it out myself?

I just ripped out the random connectors hiding out next to the fuse box inside; the resistor that wasn't even doing anything in the steering column, re connected wires that had been bypassed, and disconnected the parallel spice. Hopefully it starts tomorrow...

 

Well I know now that blue wire tied in is for the left turn signal.

 

Thats a bit odd..... I guess there is a break on the factory wire somewhere (or a pin is pushing out of a connector) and rather than find the break it was easier to just pull a new wire.

 

Well they probably didn't even take the time to look. With the other maintenance practices I've ran across on this Hummer I say they identified that there wasn't a connection, and just ran a wire instead. I posted a vlog on YouTube about it, but I'm not really trying to plug my channel on here.

 

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