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BMW 3-Series (E90 E92) Forum
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retro fitted backup camera but with problem
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04-04-2013, 04:55 PM | #1 |
First Lieutenant
48
Rep 376
Posts |
retro fitted backup camera but with problem
retro fitted back up camera on my 2008 e92 coupe.
It works perfectly fine with ignition on but it gives me messed up screen when engine is running. Camera is wired to reverse light. I thought its not getting enough juice from reverse light wire but it works perfectly fine when engine is not running. Anybody had problem like this before? Or anywhere else I can wire back up camera to? |
04-04-2013, 08:23 PM | #2 |
Private
11
Rep 86
Posts |
Wire in a relay, using the reverse wire as trigger and get the 12v directly from the battery or another 12v wire. It sounds like u are getting interferance through the reverse wire.
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Appreciate
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04-10-2013, 03:26 AM | #3 |
First Lieutenant
48
Rep 376
Posts |
Thank you. Just bought 4P 20A relay.
Can you check my wiring before I shock myself or burn my car down. 4P 12V relay 20A Red / Black /Yellow/ Blue Blue=switch= reverse light Red=positive on battery black=ground yellow=power going into camera Any nearby alternative 12V other than battery itself? |
Appreciate
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04-10-2013, 10:05 AM | #4 |
Private
11
Rep 86
Posts |
Best bet is to take a picture of the relay so i can see the diagram on top (I usaully use 5wire relays). But off the top of my head
Red-->goes to car reverse wire (85 0r 86) Black-->goes to ground (85 or 86) Yellow-->goes to 12V constant (87) Blue-->goes to back-up camera (30) |
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