LS factory cruise control hook up

[CHIEFWAHO]

Grabbed this 4 wire switch off a mid 80's Dodge Ram.

Googled and found a wiring diagram.

Am I reading the diagram correctly, that this is an "Open Switch" ?

[ls1nova71]

I can't tell from that schematic? Would be best to test it with a multimeter to be sure.

[CHIEFWAHO]

Not exactly sure how to test my switch?

Did PIN out testing last night.

I assume B should not have voltage until SET is pushed? and then it should just momentary voltage?

[ls1nova71]

Get a test light, and a battery and hook the positive side of the battery to the black wire on the switch. Then with the test light, hook one end to the ground of the battery. After that, you can check the other three wires. Start at the yellow wire, you should have 12v when the on/off switch is set to ON. Then check the white wire and press the SET button, you should have 12v only when the button is pressed. Lastly, check the dark blue wire, press the RESUME, you should have 12v only when it's pressed also. That's what it looks like from the schematic anyway, so that's what I would do.

[Davidf]

Originally Posted by ls1nova71

Get a test light, and a battery and hook the positive side of the battery to the black wire on the switch. Then with the test light, hook one end to the ground of the battery. After that, you can check the other three wires. Start at the yellow wire, you should have 12v when the on/off switch is set to ON. Then check the white wire and press the SET button, you should have 12v only when the button is pressed. Lastly, check the dark blue wire, press the RESUME, you should have 12v only when it's pressed also. That's what it looks like from the schematic anyway, so that's what I would do.

Or, do the same thing with the continuity setting on a meter.

[CHIEFWAHO]

Thanks for the help all! I finally have full functioning cruise control.
My wiring I did was spot on. Culprit's were bad switches I had sourced from used vehicles.
I ended up ordering a new cruise stalk thru Amazon. I'm not real fond of the look but maybe I'll find a more retro stalk and swap out the inner switch sometime down the road.

I cut the 1 screw flat piece off my original turn signal lever and welded it to the new stalk.

[Davidf]

Happy you got it working even if it is on a Jeep. Here is a good option for a new cruise control/turn signal lever:

https://www.amazon.com/Rostra-GM-Sty.../dp/B008LUTF0C

[CHIEFWAHO]

Originally Posted by Davidf

Here is a good option for a new cruise control/turn signal lever:

https://www.amazon.com/Rostra-GM-Sty.../dp/B008LUTF0C

I looked at that Rostra lever. Was told it's a closed circuit and did not want to add the relays to make it work. Did wonder if the switch out of the new one I used would fit the Rostra.

[Davidf]

Originally Posted by CHIEFWAHO

I looked at that Rostra lever. Was told it's a closed circuit and did not want to add the relays to make it work. Did wonder if the switch out of the new one I used would fit the Rostra.

Yes, you are correct (missed that originally)! So, I found this:
https://www.ebay.com/itm/163591278949
The adapter converts the closed circuit to open circuit (does all the relay work for you). I think it will be money well spent on my project as it task one task of many away from me.

EDIT: The Ebay seller cancelled my purchase due to out of stock...even though the listing says there were 6 of 10 available. Going to make my own from NC and NO relays.

[aggie91]

Ok, I was going to finish up get my cruise hooked up yesterday and I had a brain blockage...

For the wire that goes from C2 Pin 50 (VSS Out) of the PCM to the K terminal of the cruise module connector, can that be spliced so that it also feeds my electronic speedo?

Also, the Purple TCC Brake Switch wire from C1 Pin 33, can it be spiced so that it get is power from the brake switch at the same time as the wire to terminal D on the cruise module connector?

I know it should work that way, I just needed to ask so that someone can confirm it.

Thanks,

[aggie91]

Here is my marked up schematic...

[ls1nova71]

Originally Posted by aggie91

Ok, I was going to finish up get my cruise hooked up yesterday and I had a brain blockage...

For the wire that goes from C2 Pin 50 (VSS Out) of the PCM to the K terminal of the cruise module connector, can that be spliced so that it also feeds my electronic speedo?

Also, the Purple TCC Brake Switch wire from C1 Pin 33, can it be spiced so that it get is power from the brake switch at the same time as the wire to terminal D on the cruise module connector?

I know it should work that way, I just needed to ask so that someone can confirm it.

Thanks,

Yes you can splice them in. It will work fine that way.

[1rippen6]

subscribed

[aggie91]

I have been working on hooking this up in my LS swapped '84 C10. I took the liberty and the time to clean up the wiring diagrams in this thread posted by ls1nova71 and XwalkerX. See attached. I will be updating them to include wiring for a "Cruise Engaged" light.

I also printed the Cruise Control Module Connector Pin Out. The charts wire color was different than the wires in my actual connector so I noted those in RED text. I added a column for the wire colors I used to extend the wires on my actual connector.

I hope this helps someone on here. The original hand drawn diagrams where great, I just made them a bit neater and added some notes that helped me.

[aggie91]

Here are the updated diagrams with the Cruise Engaged indicator light wired the way ls1nova71 describes in post #163.

[elf w/capital T]

Originally Posted by aggie91

Here are the updated diagrams with the Cruise Engaged indicator light wired the way ls1nova71 describes in post #163.

AHHMAZING!!! WOW thanks Karl! Saving to use when ever I get to this project

[cpnbnanamn]

Originally Posted by ls1nova71

If it's looks you're after, I have what you're looking for if you have a.67-72. I have a few "hybrid" levers that I've made from different parts that match the turn signal levers on 67-72's. They have the grooves in them. Or i have the newer looking ones tht are smooth. I can post some pics later today.
Posted via Mobile Device

I don't suppose you have any of those levers left do you?

[ls1nova71]

Originally Posted by cpnbnanamn

I don't suppose you have any of those levers left do you?

PM me.

[cpnbnanamn]

Originally Posted by ls1nova71

PM me.

PM sent.

[Davidf]

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!

[TA_C10]

Originally Posted by Davidf

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.

[nsocwx]

I followed post #1 about a year ago to create a harness for a LS cruise control in my 72. I didn't want to replace the brake switch for a LS style one so I came up with a solution to use a relay and 10k ohm resistor to emulate the behavior and make the cruise module think I was using the correct gear. The brake relay is normally open sending power to the clutch input and also provides the brake a source to ground via the 10k resistor. When the brake pedal is pushed it kills the clutch signal and sends 12v to the brake input. Viola!

Jump forward to now I finally got myself a Rostra cruise control switch and when I was probing the function I realized that the set button is normally closed which does not work for the LS cruise.. doh! Another relay to the rescue to just swap the way in which the signal works. There is probably a better way to do it, but this works just fine for me in practical application. The 'set' relay is energized when the cruise is switched on and clicks off briefly when you hit set.

Since I had to relook at this I cleaned up my schematic and I'll post that here in case in helps anyone. It's a little odd, but it works for me. The diagram shows 12v coming from the battery directly for simplicity, you would want to use a switched source as I have done.

https://photos.app.goo.gl/UeRdo12Smss4MAFf7

[SchreinerM]

Reviving an old thread to help a buddy. 2002 6.0L cable drive, 4L60E, factory cruise control module (pins A-K). He has a Dakota Digital HND-2 box to control it. Does anyone have a schematic for that configuration? I've found several for that configuration with a DBW, but no cable drive. Thanks!

[87chevy.com]

Originally Posted by SchreinerM

Reviving an old thread to help a buddy. 2002 6.0L cable drive, 4L60E, factory cruise control module (pins A-K). He has a Dakota Digital HND-2 box to control it. Does anyone have a schematic for that configuration? I've found several for that configuration with a DBW, but no cable drive. Thanks!

have you googled?
i did... "2002 silverado cruise control diagram" and lots of diagrams pop up..

I had a 2000 style cable driven throttle body, matching cable driven cruise control module, and factory 1987 cruise control switch, wired it exactly like the OEM diagram, worked exactly as OEM. nothing special, follow the wiring diagram.

[A1971Blazer]

Just about ready to start wiring the CC module for my '67 LS1 swap.
My cruise stalk/switch (from some year of a factory vehicle?) has red, green, yellow, and blue wires.
So far I haven't found that combination in any diagrams.
Anyone have any info for it as far as which color wires are for which function or how to determine?