Aux Switches Constant Power

The auxiliary switches/circuits that are provided in the 4th Gen are normally only powered with ignition on. Has anyone tried to alter these so they have constant power? Is there a way to bypass the relay to do this?

I ask because I have a few accessories in mind that I would like to be able to use without the ignition on.

 

In reference to your question their might be, I know Rams you can manipulate what want by moving the fuse over one spot. In other words some fuses have 3 plugins (a) (b) (c) so if you unplug from a,b and replug to b,c you go from ignition power to constant power.in wonder if it works with our trucks I haven’t tried yet.

 

Connect to the battery. Have the switch close to the accessory. Have a fuse somewhere in that line.

 

You need to track down the wiring diagrams for your truck. If you can find the controlling relay(s) in question you might be able to do a mod something like this
https://www.tacomaworld.com/threads/always-on-power-outlet-relay-modified.407458/

There is also a version of that mod where the contacts are 'jammed' closed with something like a thick ziptie - no soldering needed. 100% reversible.

 

That’s how an auxiliary fuse box on my motorcycle works. It makes it very convenient to change circuits between switched and constant power.

 

I would usually follow an approach like this, using an auxiliary fuse/relay box. This time I’m hoping to use the circuits that are already provided for auxiliary use. I think they just need a slight modification to have constant power.

 

Thanks for the link. This is along the lines of what I was thinking. It should be as simple as changing the relay that is ‘normally open’ into a ‘normally closed’ configuration. The three relays for the AUX1, AUX2, and AUX3 circuits are located in the fuse box under the hood on the driver’s side. I’ll play around with a multimeter this weekend to make sure this approach will work.

 

Thanks for the response, but I’m not sure I follow what you are trying to explain. I don’t see how the heated seat circuit has anything to do with the AUX circuits. I think manipulation of the relay should be all that is needed to provide constant power to the AUX circuits.

Do you see any problems with altering the relay from a ‘normally open’ configuration to an ‘always closed’ configuration. This could be accomplished by mechanically closing the contacts, or maybe replacing the relay with one that is ‘normally closed’ and removing one or both of the terminals that would make it open when it sees ignition power.

 

Just plug it directly to the battery. DONE.

 

I wish it were that easy. On my last truck I had to do that approach, but I did it with an auxiliary fuse box to have a quality end result. https://www.tacomaworld.com/threads/diy-build-and-install-a-bussmann-rtmr-fuse-relay-block.399454/

I think I can avoid an auxiliary fuse box by simply using the provided circuits. I poke around with a multimeter this weekend to verify. I just thought I’d post here first to see if someone else has already confirmed my thoughts.

 

That statement tells me you don't know what your doing.
So I'm out...