Originally Posted by Falcon35
I have a strange problem with our rear view cameras only when my head lights are on. When I turn on the right signal it turns on the right camera but when I turn the signal of lt don't go back to the center camera. When I turn on the left signal the display flashes with the signal. With the head lights of. Every thing is back as it should be.
My camera system is Perimeter View not the more popular one.
I had someting very similar happen in the spring of this year. I was driving home home after a recall appt. with Ford. It rained buckets for a few minutes and suddenly my cameras well BS. The main and both sides appeared foggy and which ever sighnal I used became "stuck". I was able to cancel them by going the other side,but it would stick some of the time also. Finally it stuck left and stayed there. I have no drawings of how it's built. I washome in a few minutes and studied the pattern. Sometimes it would correct after a delay. With nothing better to do, I climbed up the rear ladder with towel and hair dryer in hand. That was the last place to have a cause due to the rain. SOB I towel dried the camera and just barely warmed it up. (sensitive electronics). Back to dash and all was well!
Not to say this is the same problem for you, what I am saying is didn't take much of a circuit malady to bring the system down.
In the case of the headlight symtom, the headlights do not power across the switch you operatee. In fact they are powered by a larger switch called the headlight relay. This mayb be mounted behind the dash near the center HVAC/radio/camera controls. I'm not sure its location but it's backthere somewhere. I can see if the camera sys and the headlight sys share a common ground via a busbar or stud or whatever. In the event of a loose or corroded connecton the heavier loaded HL circuit coulod interfere with the camera. Without dwgs. we can only guess but with the the box outside some of these theories can be proven/disproven.
I would start with the Wiring possible to locate the ground wiring from camera sys and headlight relay.Also check the fused power supplies tothe camera sys and the headling system. Headlight system probably located on Ford chassis fuse supply left side of footwell. Camera not sure but probably a auxilliary panel also powered by Ford panel.
Side cameras, easy to pop the cover and check for moisture, rear camper I didn't open, just warmed/
This is a tough one, thats why all the response!