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Big Moose · 01-09-2019, 11:54 PM

Here's another Cruise Control question:

6.0L / 4L80e out of a 2005 2500HD swapped into a 1985 C3500
DBW Throttle using a harness from Painless Performance

Cruise was working for the better part of 2 years and then it quit.
Checked the brake switch and confirmed it's working.
Checked the Cruise On/Set switch on the signal lever and confirmed it's working. I checked these at the TAC plug to make sure the harness wasn't at fault So I decide it must be the TAC, tried 2 different TAC modules and still nothing.
I was wondering could the pedal or the throttle body be at fault and how would I be able to test them

01-09-2019, 11:54 PM	#38
Big Moose Registered User Join Date: Dec 2018 Location: Alberta Posts: 71	Re: Thanks ls1nova71 for the help on cruise Here's another Cruise Control question: 6.0L / 4L80e out of a 2005 2500HD swapped into a 1985 C3500 DBW Throttle using a harness from Painless Performance Cruise was working for the better part of 2 years and then it quit. Checked the brake switch and confirmed it's working. Checked the Cruise On/Set switch on the signal lever and confirmed it's working. I checked these at the TAC plug to make sure the harness wasn't at fault So I decide it must be the TAC, tried 2 different TAC modules and still nothing. I was wondering could the pedal or the throttle body be at fault and how would I be able to test them