How to source a 12v Accessory Power for Flip Down DVD Screen
I am chasing up a source to connect my above DVD FLIP DOWN SCREEN. I have been told not to connect anything like piggy back to Cig Lighter or any other source as it may affect my ECU. I also have a set of parking sensors and just want to sure if i can connect to the reverse light source for power.
I would like to make some sense as one person has scared me due to ECU being funny if you connect any power source to any outlet.
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Re: How to source a 12v Accessory Power for Flip Down DVD...
You said "ECU being funny if you connect any power source to any outlet"
You aren't connecting a power "Source" to the vehicle unless the unit has internal batteries.
The ECU is far more sensitive to someone connecting another lead acid battery to the system, as in Jump Starting the Car.
A spike or trancient voltage can damage the vehicles main control cpu or ECU but highly unlikely from a dvd player or mobile phone etc.
I wouldn't be overly concerned....
If the device you attaching draws only 1-2 amps then pinching a bit of power from the reversing light is the way we all do it.
But... you can insert a device like this in between to protect your DVD Screen from transients.
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It could possibly be a wire or plug harness disconnected but the chances of that are slim. If its a flip down screen, it could be that the contacts internally are "wearing away" and the whole assembly may need to be replaced. I will look up a self test or functionality test if you like, to help narrow down the possible sources. Its always a good idea to check all your wiring and fuses just to be sure. It also wouldnt hurt to check the receiver where you insert the dvd, maybe hit it with the air duster in the off chance the lens is dirty
Oddly enough something similar recently happened to my 2009 650i recently purchased. The system would intermittently cut out and restart, turning on the radio even with another source selected or radio off. No idea if there is a short or software issue causing it, but it started when I put the navigation DVD in and tried to use it. Took the DVD out and restarted the system, problem hasn’t returned. I’ve read about others having similar issues with the navigation system causing the radio/idrive to cut out as well. It’s a long shot, but worth posting so others don’t spend money chasing a problem solved by using your smartphone instead of the car’s navigation.
Does your system allow a external input on the video screen?It may be set in the menu for a input from an external source.Can you see a menu on the screen?Set the input to a different input source.Try a video input plugged into the screen to check that the screen is working correctly.Try a different DVD?
I would take it back to whoever did the install, and see if they will correct it. Is your light switch to flip up the lights on the steering column? Possible they pinched or inadvertently pulled a wire loose. I know on toyotas the flip up lights work off the light stalk, independent altogether of the ignition switch.