Yet another back-up camera thread... - Toyota Yaris Forums

invader166 · 10-16-2016, 11:27 PM

Hello everyone, sorry to bug you all with this, but I've been trying to figure out where i've gone wrong with wiring my reverse camera for some time now.

I just can't wrap my head around it...

I believe i've connected everyting the right way. The reverse trigger on my head-unit (purple wire with reverse tag attached) is connected to pin 22 of connector 4B of the fusebox behind the driver side dash.

The "+" suppy for the camera is connected to the same pin, and the "-" I've attached to a bolt on to the body of the car, to ground it.

When i switch to reverse, the image display on the head-unit switches to the camera, so that works, but for some reason i still have a "No Signal" message being displayed, and a completely black screen.

Where have I gone wrong? Do I need to find a different "+" ACC power supply? Does the reverse trigger wire not provide 12V+ power to the headunit when reverse is selected?

I will double check the connections again and make sure i didn't miss something.

kevinj93 · 10-17-2016, 12:17 AM

I took the power for my back-up camera from one of the reversing lights. Do you actually have a +12V feed to the camera? i took mine from one of the reversing lights.

ern-diz · 10-17-2016, 10:45 AM

I'm gonna go get the papers, get the papers

10-16-2016, 11:27 PM	#1
invader166 Pumpman Drives: 2019 Kia Soul EV Base Join Date: Dec 2014 Location: Langley, BC Posts: 434	Yet another back-up camera thread... Hello everyone, sorry to bug you all with this, but I've been trying to figure out where i've gone wrong with wiring my reverse camera for some time now. I just can't wrap my head around it... I believe i've connected everyting the right way. The reverse trigger on my head-unit (purple wire with reverse tag attached) is connected to pin 22 of connector 4B of the fusebox behind the driver side dash. The "+" suppy for the camera is connected to the same pin, and the "-" I've attached to a bolt on to the body of the car, to ground it. When i switch to reverse, the image display on the head-unit switches to the camera, so that works, but for some reason i still have a "No Signal" message being displayed, and a completely black screen. Where have I gone wrong? Do I need to find a different "+" ACC power supply? Does the reverse trigger wire not provide 12V+ power to the headunit when reverse is selected? I will double check the connections again and make sure i didn't miss something. __________________ "I would rather loose by a mile in a car I built myself, then win by an inch in a car that was built for me." - Moog

10-17-2016, 12:17 AM	#2
kevinj93 Drives: 2013 NCP130 Join Date: Nov 2015 Location: Sydney, Australia Posts: 379	I took the power for my back-up camera from one of the reversing lights. Do you actually have a +12V feed to the camera? i took mine from one of the reversing lights. __________________ Running on standard AU 14" steel wheels (14x5 rims, 175/70R14 tyres). Added reversing camera and touch screen radio, cruise control, 16" rear wiper blade, tow bar and dash cam.

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10-17-2016, 10:45 AM	#3
ern-diz View User's Garage Drives: 2007 Liftback Join Date: Sep 2007 Location: CA all day Posts: 3,794	I'm gonna go get the papers, get the papers