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Let's investigate each individual setting, one at a time. Move the settings back to NO because that's how all the signaling should work.
If you have everything wired, including the relay as per the above drawing, you should hear the relay click as it engages when you switch the cruise on.
You should also be able to measure the COM terminal and see 0 VDC.
When you tap the set switch, the COM terminal should briefly jump to 12 VDC and then fall back to zero.
The above to measurements are with reference to (wrt) ground.
How are those actions working?
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The relay only clicks when I hit set. Nothing when I turn it on/off
COM has 12v
Br/rd definitely has power at the switch, hard to think I have a bad relay but I’ll try another relay.
Did you see my drawing? It’s exactly like that, which is like yours.
Great advice. Wait…there wasn’t any.My opinion is your way over thinking this........not gonna end well !!! Mechanic for over 40 years.....Not close to being a "parts changer" !!!!
Back at work, I’ll confirm tomorrow morning.OK, you say that BR/RD has 12V at the switch, then, you should have 12V at relay terminal 85 because the BR/RD is connected there.
Do you agree? Have you measured 12V at both the switch end and at relay terminal 85?
Are you using the same ground reference for the negative test lead on the multimeter?
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Yes I have 12v at the switch and 85. When I press set, COM is at 0. We want the opposite, correct?OK, you say that BR/RD has 12V at the switch, then, you should have 12V at relay terminal 85 because the BR/RD is connected there.
Do you agree? Have you measured 12V at both the switch end and at relay terminal 85?
Are you using the same ground reference for the negative test lead on the multimeter?
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@RamDiver what do you think of that relay configuration?
Thanks a bunch for your help!You have made a couple of changes to the original design I presented but these changes have the same end result, so, you're good to go.
For instance, you switched the ground & BR/RD positions on the relay coil which truly makes no difference to the functionality of the relay. You still get a 12V potential across the coil.
I would suggest you draw out a schematic for the final build and include crib notes such as voltage measurements and your understanding of the relay action. This way, if you are required to troubleshoot any faults in the future, you will have much less grief.
Congrats, you made it work in the fashion you desired.
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My opinion is your way over thinking this........not gonna end well !!! Mechanic for over 40 years.....Not close to being a "parts changer" !!!!
Thanks a bunch for your help!
I do understand 85 and 86 make the circuit, I was just switching things back and forth to get the 0v at rest, and the 12v when pressing the SET button.
I guess all I needed to do is get the yl/rd to COM.
I’ve drawn out the schematic in the record book, cleaned it all up and have everything back together.
Thanks again for all of your help/knowledge and patience with my electrical skills. I definitely learned a bit more about relays.