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Old 03-04-2022, 12:48 PM   #346
TA_C10
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Join Date: Jun 2018
Location: Texas
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Re: LS factory cruise control hook up

Quote:
Originally Posted by Davidf View Post
FWIW, I used the Rostra switch with circuit reversing relays and my cruise did not work. So, I started tracing circuits to see where I went wrong. In the end, it turned out to be a mis adjusted brake light switch that caused the normally closed portion (that the cruise power circuit connects to) to be normally open. Readjust the switch and bingo. Love it!
Good info David. This could really save somebody down the road.

I used ackattack directions for relay setup. I first used cheap male and female insulated connectors on every wire to begin with, a volt meter, and tested everything. Worked pretty good. Then I cut off all those connectors and finalized the wiring connections. Connectors allowed me to drive down the road and test after I got them right with volt meter. Twisting them together they could have touched. Whatever you prefer, but it's easy to test this way.
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