Spoof a connected trailer for side camera function

[Steve Wagner]

Anyone know of a mod for this?  When a trailer is connected to my 2020 Sierra AT4, the side cameras activate when you activate your turn signals, shows the whole side of your truck and aft on your screen, very cool.  Unfortunately it only works when a trailer is connected and I'd like that feature on all the time.  Is there a way to plug in a connector to the trailer jack that will spoof a trailer being connected?  Maybe a pin connector with resistors to show load? 

Steve

[topgear1224]

Any 7 pin simulator should work I would think.


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[romclean1]

Any 7 pin simulator should work I would think.


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I thought the same thing, tried 3 different simulators and they didn’t fool the truck.


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[topgear1224]

I thought the same thing, tried 3 different simulators and they didn’t fool the truck.


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Wierd I wonder if it uses AI with the rear camera.

you could try a complete wiring harness like the ones they sell at Walmart with the lights and everything and just throw them in the bed and see if that works. [emoji1745]

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[Steve Wagner]

If anyone finds a solution that works, please share.  I'll do the same

 

[Ezekiel2517]

Maybe you need an actual load or a completed circuit.  The trailer connector adapters are still leaving you with an open circuit.   Try hooking up one of those sets of magnetic trailer lights from harbor freight. 

[topgear1224]

Exactly what I was thinking

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[Fuelie]

When you tried the simulators did you have it in tow/haul mode?

Tom

[romclean1]

When you tried the simulators did you have it in tow/haul mode?
Tom

Yes tried it, didn’t make any difference for me. Important to note that the testers are designed to test the trucks wiring, which is very different than simulating a trailer.

I do think you could modify a tester and add a load for each lamp, I considered it and then decided that I like my backup sensors more.
I think the guys from White Auto (the magical programming gurus) said this was a complex problem to solve as well.


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[Matt505574]

Just bought this for the 7-way plugin on my 2022 sierra (it doesn't have a factory flat).  Anyway, works perfectly.  The truck recognized it as a trailer and i set up a profile for it.  Tried putting a photo of it installed but cant figure out how to.  It doesn't look bad at all leaving it in.
 

Reese Towpower 78118 Professional Wiring Adapter, 7-Way Blade to 4- or 5-Way Flat, LED Circuit Tester,Regular 
https://a.co/d/csR1d5l

[eppieguy]

But you still lose the rear parking sensors.

[Zantigo]

You need one of these.

 

Edited March 5, 2025 by Zantigo
bad photo