Cruise control DBW PSI harness

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kennythetruck

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Brighton Mo
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Ethan
Truck Year
1987
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R10 silverado
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4.8
Good morning I completed my first Ls swap last year. When I bought the PSI harness I did a complete kit from them for DBW( pedal, tac module, pedal harness etc) I had them wire it for cruise control and have them tied up under the dash. I’m now ready to try and finish that portion of the install.

2006 4.8 and 4l60e
Trucks been completely rewired with a painless wiring harness
PSI Ls harness

I am wanting to wire the cruise control to the stock turn signal stalk that has the cruise functions. I have emailed PSI for them to send me the directions again on wiring this up as I seemed to have misplaced them.

I’m sure there’s someone here that has done this exact swap. What do I need to finish it? I remember it talking about relays but can someone give me some insight? I’m not afraid to tackle it. I’m not a wiring guru but I can struggle through it with the best of them

Thanks
For any feedback!

Ethan
 

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Matt69olds

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What wires/signals does your EFI need to function?


Pretty sure there is a cruise diagnostic chart somewhere in the electrical forum.
 

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