Re: 5.3L DBW cruise hookup
what exactly do i need for the cruise control to work on my truck iv looked all over but haven been able to get clarification for this set up, i have a 2000 5.3 4l60e dbc. in a 1970 c10. i understand the dbw is easy to set up but i dont think i understand the dbc setup. clarification please or maybe and exact example to i can understand a little better thanks and sorry for the interuption. GREAT FORUM btw i cant go to sleep unless ive been on here for a couple hours looking at everyones set up and ideas.
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Re: 5.3L DBW cruise hookup
http://67-72chevytrucks.com/vboard/s...d.php?t=511477 This should help
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Re: 5.3L DBW cruise hookup
Hi iregalado, Drive by cable is the stock set up for your 2000 5.3. I did this install in my 2001 5.3 in my 68 c10. As long as you are sure your engine originally came with a cable operated throttle body this is what you need. 88-93ish full size gm truck cruise box with cable and the pigtail that plugged into the cruise box. You will be making your own harness (it's easy). From my memory here we go, cruise box harness plug in will contain at least these circuits. A 12 volt + from ignition switch (key on), A ground, A 12 volt+ from the cruise switch, A 12 volt+ from the set position, A 12volt + from resume, A vss (vehicle speed signal) from the ecm. On my install i used the oem early 70 ish cruise/turn signal lever that only has set position. I mention this because i had trouble getting my cruise to engage. Here was the problem, my old style switch had dirty contacts and didn't sent out a clean full voltage signal to the cruise box, and after some work i finally found out that the cruise box compares the 12 volt + from ignition and the 12 volt + from the cruise switch and the two circuits must be with in 1/2 volt of each other. I ended up wiring in a relay that was switched from the cruise switch so it sent out a full voltage signal to the cruise box and all was good. Stay away from about a 1995 and newer cruise box as they require additional wires. Check with ls1nova for cruise switch help as he most likely will have what you need. He's super helpful! You will need a brake switch for a cruise application (readily available). This switch works opposite of the brake light switch. This cruise brake switch opens the circuit when you step on the brake. If a person wanted to you could do cruise with the stock brake switch and a relay, you wouldn't have to have a separate cruise brake switch. Relay wiring would be this, terminal #30 on relay= 12 volt+ from ignition switch (fused), terminal# 85 to ground, terminal #86 from the cold side of the brake switch (this is the side of the brake switch that the tail lights are on, cold when your foot is off the brakes, hot when you are stepping on the brakes), terminal 87A to cruise box input. Drive by wire would require a TAC module, and different throttle body at least and i don't know about ecm requirements. Good luck, brian fuller
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Re: 5.3L DBW cruise hookup
thank you lsnova71 and 68c10airstream thats exactly what i was looking for, i did my own harness on my 5.3 swap so im sure i can do this. you guys and this forum have been a big help i would love to post my build but unfortunate my phone go stolen so i was never able to upload any pictures and i know a build tread ain't much without any pictures but once again thank you all for your help.
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Re: 5.3L DBW cruise hookup
Want to verify something before I hook up cruise on mine this weekend. I"ll be using just switches, not a stalk.
For a simple switch setup, I gather that; 1. I run a switched and fuse +12v to a toggle switch, by default, getting 0 voltage in the OFF position. After that switch, I connect to pin 14 on the TAC module. 2. Off the same circuit I just made, I need to tap the 12v AFTER the switch, and run that to the Input side of a momentary switch (open, no voltage until depressed). From the Output side of the momentary, to pin 4 on the TAC. 3. I won't be adding an accell/resume so i can disregard that. 4. I need to hook a wire from the Brake switch to Pin 6 on the TAC. Thats all correct...right? So tell me this; I'm already using a 4 post switch for the ls swap, and all 4 already have wires on them. WHICH wire do I need to run to the TAC? The n/o vs n/c confuses me; is the 4post fine, or do I need to add a relay like the above stalk kits? IF yall could break down that little part for me I'd appreciate it.... I wanna use the old High beam foot button for the cruise switch, and a simply momentary on my switch panel. |
Re: 5.3L DBW cruise hookup
BR3W, you have it right, and your brake switch will be fine, and no extra relays are needed. Just hook the wire to pin 6 on the TAC from the "hot when applied" side of the brake switch. The other side is for the TCC and you already have that hooked up so you're good there. The only problem you may encounter is if you have LED brake lights.
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Re: 5.3L DBW cruise hookup
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Re: 5.3L DBW cruise hookup
Do you have a wire diagram for the Dakota Digital surface mount 4 bottom switch HND2?
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Re: 5.3L DBW cruise hookup
Great thread
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Re: 5.3L DBW cruise hookup
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I just picked up this switch from Amazon. Can I wire this up the same as the DD one's in the original post?
https://www.amazon.com/Rostra-GM-Sty.../dp/B008LUTF0C Thanks - Matt |
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Re: 5.3L DBW cruise hookup
I am wanting to install cruise to my gen IV 5.3 4l80e. When reading info about the gen IV system gets confusing.What would better the way to go. Rostra or BCM.
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So am I wiring it so that the switch connects to this plug? Or am I splicing into the wire between this plug and the ECU?
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Re: 5.3L DBW cruise hookup
There should be three wires coming from that plug that go to the switch.
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Re: 5.3L DBW cruise hookup
I'm finally back on this. I've had it all wired up for months, and just left the fuse out because I wanted to test it somewhere safe first. Well I finally did that tonight, and it's working. Kind of.
It only holds the speed when the switch is on and I hold in the SET/CRUISE button. Any idea what I did wrong? I'm assuming that I have something backwards, but it's been so long since I wired it all up, I can't remember the details enough to trouble shoot it. Any help would be greatly appreciated! Thanks - Matt |
Re: 5.3L DBW cruise hookup
To use the switch that you have, you need to use relays to reverse the normally closed switches to normally open. Did you wire it that way?
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