Backup Camera, 2012 Ford E-450

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icline

Member - Posts: 3

Joined: May 25, 2018

Location: Iowa, United States

Posted: May 25, 2018 at 11:04 PM / IP Logged

I am trying to put a backup camera in my work truck a 2012 ford e450 trying to find out what wire the reverse signal is on. Thanks

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: May 26, 2018 at 4:54 AM / IP Logged

Test the blue/white wire at the rear view mirror.

My ex once told me I have a perfect face for radio.

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 26, 2018 at 6:38 PM / IP Logged

If it is not at the mirror, that same wire is in the drivers kick panel in the harness going to the rear of the vehicle.

eguru

Copper - Posts: 340

Joined: February 04, 2018

Location: Quebec, Canada

Posted: May 26, 2018 at 7:37 PM / IP Logged

Autodimming rearview mirrors have reverse wired to the mirror so that the dimming is canceled when in reverse.

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 26, 2018 at 8:42 PM / IP Logged

Does your 1+ ton workhorse van have an auto dimming mirror? Let us know.

icline

Member - Posts: 3

Joined: May 25, 2018

Location: Iowa, United States

Posted: May 26, 2018 at 11:51 PM / IP Logged

No on the mirror and is it white with a blue stripe or the other way blue with a white stripe

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 27, 2018 at 8:24 AM / IP Logged

Blue with a white stripe. If you are having trouble finding it, it is also at the bulb in the back of the vehicle.

icline

Member - Posts: 3

Joined: May 25, 2018

Location: Iowa, United States

Posted: May 29, 2018 at 8:47 AM / IP Logged

No blue white wire checked at the light it has black red and yellow tried the yellow it does not activate the camera also tried to reverse the polarity no luck

geepherder

Platinum - Posts: 3,668

Joined: October 27, 2003

Posted: May 29, 2018 at 4:31 PM / IP Logged

Do you have a multimeter? Do your reverse lights work?

Alternatively, you can test a brown/yellow wire (negative switched) at the transmission range sensor, PCM, or battery junction box. Of course, you'll need to invert the polarity with a relay.

My ex once told me I have a perfect face for radio.

eguru

Copper - Posts: 340

Joined: February 04, 2018

Location: Quebec, Canada

Posted: May 29, 2018 at 9:24 PM / IP Logged

icline wrote:

No blue white wire checked at the light it has black red and yellow tried the yellow it does not activate the camera also tried to reverse the polarity no luck

Reversing the polarity may have damaged the unit.

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