20-23 Anytime front/backup camera

Yes, the trigger switch needs to send power to both pin 85 and the front camera. Follow the green line in the diagram.
The relay itself does not send power to the camera. It simply switches between the positive (red) cables from the cameras (front and rear) to the video in of the screen. The relay deals with the video signal. However, the green power line provides power to the front camera and switches the relay to connect the video signal from the front camera to the screen input.
Happy to clarify further if needed.

 

@bigssa
Awesome….thx
In that case, I should probably send power from switch to Camera using an appropriate Relay to handle camera power needs?
For ref to others on diagram provided by Biggs’s a:

 

I am not using a relay because the power consumption of a camera is low. You can and it will not hurt.

 

@bigssa - I date to ask one more q regarding connections with Pin 28 harness - in putting it together section:
“You should have 3 wires coming from the 28 pins harness. The first one is a 12V that should connect to the 12V input of the switch (terminals 2 and 5) and the NO (pin 87) of the reverse trigger relay. The second is the OEM revers trigger which will connect to the NC (pin 87a) of the reverse trigger relay. And the third is the reverse input to the head unit which will connect to pin 30 of the reverse trigger relay.“
Is this the correct reference to to the 3 wires? Jpg below

 

First off, feel free to ask as many questions as you have. This thread is meant to help anyone who wants to do this on their own.
Second, to answer your question, yes. The image you have with the numbered wires.

 

@bigssa and all. I am finding it impossible to harness male side pins for 30pin video harness. Any tips on this. Do you insert pin tool on wire side OR pin side. I used the tool recommended in thread to remove female side.
Insert tool in slot right above desired pin…Pic below.

 

You are inserting it into the correct slot. The pin remover that you choose has to be thin and long enough to push the metal tab that locks the pin in place up and therefore allowing you to pull it through the wire side. My guess is that the pin remover that you are using is either too wide and therefore it is not getting all the way to the metal tab or you need to try and wiggle it back and forth a bit to try and touch that metal tab up while pulling the wire gently from the back.

 

Yep, I had trouble too. Try one of the other tools. It takes some practice and patience. You can go back though the thread and find cables with all the pins wired that you can cut into.

 

Is the slot for Male connector on the pin side and does removal work same as female side where you have to figure out a way to unclip connector with the tool?

 

So there is a wire side to a connector (male or female) and there is a connector side (male or female).
There are small rectangular slots on the connector side to insert the tool.


So the connector (male or female) have little metal fingers that hold the pins in place and prevent the wires from pulling out of the connector.
What the tool does is essentially mechanically push these "fingers" back into the pin body, so you can pull on the wire, and it will come out of the body.


I think I found that a tool with a single flat end worked best. I also found inserting the tool, while I maintained some force pulling out the wire worked best.
See the following at the 17:00 mark to the 18:15 mark of the following video:
https://youtu.be/Vt_rAIKPlWA

 

@bigssa I was finally able to get “straight thru” Harnes for 30 pin harness and was able to complete my install. I sued the 7 pin switch in the initial thread. One issue came up. The switch combination of Swith connections 1+3 and 6 resulted in Front and Back cameras showing up in head unit in wrong order: “Front Cam” shows reverse cam, and “Rear Cam” shows Front cam on head unit. I fixed by moving Tigger #6 connection to #4 connector - Switch #4 goes to vid relay 85 Terminal. My green wire from switch now come out of #4 connector and goes to Pin 85 of Video harness + front camera positive. Any thoughts? Did I miss-wire switch connectors OR went to wrong connector on Video relay?

 

Figured out the problem. My switch has “Front Camera” trigger at bottom. If you follow schematic above, the green wire goes to Connector #4.

 

@bigssa / ALL - I bought an CH4x4 dual push button due to size. Since it only has 5 wires and I need to send power to switching relay when pushing either button, will this switch work? Any input wiring layout to use this siwtch? Finally, since it is low amp switch, do I need to put relay on Front Cámara feed?

 

Yes, this switch should work just fine, but you will need to either use another relay (preferred) or diode. Below is the wiring diagram for the switch you bought using a relay with a few assumptions - the blue wire from the switch is for the front camera and the green wire from the switch is for the rear camera (if these assumptions are incorrect then change the blue and green in the diagram below).

To explain what is happening here, we are creating a consolidated reverse trigger that will be "on" whenever the switch is toggled to either the front or rear camera. The output of this relay is a blue wire to match the rest of the diagrams in the original post and should be connected to anything that has the reverse trigger blue wire. There is also a green wire connected to the blue wire from the switch which will be your front trigger used in the rest of the diagrams of the original post (which is why it is colored green to match the other diagrams).
Hopefully the rest of the wires are self explanatory, but just in case:
Red - Connected to 12V accessory power
Black - Connected to ground
Yellow - Connected to dash lights or 12V accessory power if you don't mind the back lights of the switch always being on.

 

Excellent - One last q. In the original thread, the Front Trigger from switch feeds Front trigger relay AND front camera positive. In this case, Blue from switch feeds 85, 87 on new switch, 85 on existing Front Trigger switch, and Front camera?

 

Yes, that’s correct. I have the front camera power going through the switch without any issues. If you are worried about it, you can have another relay that uses 12V accessory power. I’d recommend you look at the power rating for the camera and divide by 12V, which will tell you the current. There should also be a current rating for the switch. As long as the switch is the same or higher than the camera, you are good. You can add a fuse to ensure the current from the camera doesn’t exceed the current rating of the switch.

 

So no, on recommendation of a better quality rear camera that would easily mount in factory location? Life wouldn't be that simple....

 

I know this is a million years old...but you have just solved the mystery of the zero cut factory wiring install of an add an amp and speakers for a 2020+ entune with this harness...


Even though they have "blacked out the wires"
You can find R48-15 for 12v and the R48-1 for a ground

the other harness is speakers...You COULD use it for a camera as well...

$55 Add an Amp Amplifier Adapter Interface to Factory OEM Car Stereo Radio System for Select Toyota Vehicles- Add Subwoofer Bass Amp - No Factory Premium Amp- Vehicles Listed Below

https://www.amazon.com/dp/B087Z1794K

 

Hi,

can we use the same relay for video signal and for reverse trigger (12V) at the same time? I am a bit reluctant to pass video signal and 12V through the same relay. Any thoughts?