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After installing a backup camera on your vehicle, you need to reverse the image so that the image on the screen matches that of your rear-view mirror. The orientation must match so that the driver doesn't get confused with two conflicting images. The nature of the camera's technology is that its image will be recorded un-reflected, but the mirror will display a reflected image. Fortunately, the engineers who designed back-up cameras thought of this and created simple controls for you to change the orientation.
Aug 15, 2014 - Uploaded by DeathScouter
Troubleshooting and replacing backup sensors on a 2006 Ford F250 truck, but information is ... Offered up an aftermarket back up camera for $150 in place of repairing the factory system. ...The backup alarm did not work.
No, the rear sensing system won't signal if you are in any gear except reverse. The wiring for the module is connected so that it turns on when you put the car in reverse. (This assumes the sensors haven't failed. If they are dirty, they can sometimes signal when an object isn't there.) Some newer cars have blind spot monitors that indicate an object approaching from behind and to the side; these don't indicate an object directly behind the car.
By backup I assume that you mean reversing sensors. Look on the rear bumper (fender) of the car you should see a number of small round disks embedded in the plastic (same colour as paintwork).
This should be them.
If they are there try reversing over the kerb or a small step (just less than max clearance height) the sensors will normally pick this up as you get within about a foot or so and the warning beeper will sound.
Alterately put a large pillow behind the car and reverse toward it. If you hit it without a warning beeper going off you don't have the reverse sensors or they are not working.
It is very simple to replace the backup sensor. It is a good idea to put on safety glasses or goggles to keep dirt out of your eyes. The easiest way is to lay down under the back of the vehicle and reach up behind the the rear bumper and disconnect the pigtail electrical plug from the suspected faulty sensor(s). Then simply remove the sensor by pushing from inside of bumper toward the rear of the vehicle. If you are not sure which sensor is bad, and if only one sensor is bad, you should check one sensor at a time. And then with the good sensor in place you could test each sensor to see if the vehicle beeps while reversing towards a harmless object (like a traffic cone). Repeat this procedure with the other three sensors and leave the good sensor in place when the back up sensor system works correctly. Hopefully, this will FixYa!
I would buy a Chilton Repair Manual from a local parts store and a digital ohm meter. If the chilton doesn't have the ohms for all the sensors then research online for the specs on the sensor. It sound like a wiring issue or relay.