I hope you guys can help. I bought a late model emblem reverse back up camera and wire harness. I followed and read as many of the threads about it as possible and it seemed pretty consistent about wiring and installation.

The truck is a 2005 SCrew, the head unit is a Pioneer Avic D3. I used the following wire codes and cut off the end of connector to wire it up but I can't get a picture. I split the signal between reverse and AV1, neither works. I jumped the signal from my daughters dvd player with A/V out and I can get a picture on the AVIC D3 anytime in AV1 and when in reverse for ther reverse function. I do not think it's anything in the head unit since that all seems to work fine with another video source. So it makes me think the wiring may not be correct at least the colors don't match what has been listed on the forum.

Here is a pic of the connector confirguration posted throughout the forum.
1 = Red 12v power positive
2 = Black not used
3 = Blue not used
4 = White video positive
5 = Green video negative
6 = Black 12v power negative



That didn't match the colors on the harness I have. Mine are:
1 = purple with orange stripe
2 = white with green stripe
3 = brown with violet stripe
4 = black (this wire is slightly heavier gauge and silver color instead of copper
5 = black with green stripe
6 = grey with violet stripe
Here's a pic of them.


The plug connected to the camera in the emblem is this:



I think I either have it connected wrong or the camera is defective. Does anyone know have a schematic color code for my harness or can tell me how to trouble shoot the camera. It seems like the camera isn't getting power, but I think maybe I just have wires crossed or connected incorrectly. Any help is appreciated.

 

Are you sure it is a 2009 Camera ?

The 2009 EVTM does not show the wiring for the pigtail on the camera, only the truck's wiring ( truck side of C4357 ).





If you still have the wire color on the pins for the connector that you cut off, you should be able to line them up to the pin number for connector C4357 in the diagram above.

Ford has the camera built for a specific pin layout on the connector, there is nothing to stop the wire color codes from changing on the pigtail, so it is best to line up the pin numbers for the function.

This is if you have not trashed the camera by hooking it up incorrectly ( i.e. + VDC to the video output + side ).

Not too sure how correct the line art is, but it looks like the camera connector might have changed, which could be mid MY or in the 2010 ( or 11 ) MY.

 

Thanks,
I hooked it up with:
1 = going to power source
4 = Video positive
5 = Video negative
6 = going to ground

That matches the pin configuration, none of the colors line up.
I'm wondering if I have a defective camera?
Is there a way trouble shoot it?

Shouldn't all the emblem camera's have the same pin configuration regardless of wire color?

 

The part number on the camera is:
BL3T-19G490-AC
mfg: 2/11/2011

 

Are sure of the pin numbers ? i.e. what are you calling pin #1 ?
The colors on the diagram are not for the pigtail, that is the truck's wiring colors.

The camera should have the same pin numbers, but if the connector changed, the pin numbers might have changed.

The connector you have, does not look the same as the line art in the post above. The line art shows 2 rows of 3, where your connector looks like 1 row of 6. Is this the case ?





the P/N on the camera is not the part number for the system ( think that is called a manufacturing part number ).
What was the P/N you ordered from Ford ?

The other thing, the EVTM shows the RCA plug as a modulated signal for video and audio on the same plug.
Your unit has a modulated signal or a Red & White plugs for audio and a yellow RCA plug for video ?

 

The connector with 1 row of 6 is the one that plugs into the camera emblem. It is still on the harness, I cut off the opposite end.

The connector I cut off is 2 rows of 3 and that I am using for number reference is here:

The pin sequence from left to right:
3 - 2 - 1
6 - 5 - 4
I used:
1 = going to power source
4 = Video positive
5 = Video negative
6 = going to ground

The resistance you mentioned above, should that be measured when power is applied? Or bench tested without power applied?
Thanks,

 

The resistance levels are towards the camera with it out of the truck.

 

ok, I got a second camera and still no image from the camera. Any ideas?

 

Did you install an RCA plug right on the camera and try it in the truck with power ?

You never said how you were testing it ( with wire that is installed in the truck already ? )

Is the 2nd camera a Ford camera ?

 

First: Thanks for the help. I really appreciate it.

No, I did not install an RCA plug on the camera itself. I used the Video + and the Video - wires as noted above in position 4 and 5. I made a splitter for the RCA plug that's on my receiver to create 2 wires instead of plug so I could test out the camera. I took those 2 wires from the receiver and connected them to the video output of a dvd player and the picture came on the screen. Based on this I think the 2 wires I have coming from the receiver are ok to test if I'm using the right 2 wires on the camera.

Yes, the second camera is a Ford camera also.

It doesnt' make sense, I think the wires must be crossed up somewhere

 

What do you mean splitter ?

do you mean a RCA to 2 wire adapter, so you can twist them up ? ( splitter usually means splitting the signal between multiples ).

When you are testing with the camera, is it right from the adapter on the back of the HU to the camera ( so the screen would show the interior of the truck with ~ 3' of wire ) ?
- Or are you using wire to the rear of the truck.

Best test right now is to be close to the HU for testing, and you can just get power for the camera from the cigar lighter ( either from the back of it, or using a cigar to 2 wire adapter.

Have you confirmed if the Ford camera is a audio & video over the RCA, where both signals are modulated ?
- I do not know who else has done the modification, to know if the display is expecting audio & video on the same interface, and if so, is your HU capable of understanding the modulated signal ?

 

Hi there

This is how I wired mine

Green/White = Video + - Pin 2
Purple/Brown = 12V + - Pin 1
Brown/Purple = 12v - - Pin 3
Black = Video - - Pin 5

Hope this helps .... worked for me and you defineately have to use RCA Cable

Brian

 

Guys thanks!!!
SCCULLY, I used your chart for resistance and figured out the wires needed to make it work were:

White/green stripe = Video +
Brown/violet stripe = Video -
Black/green stripe = Ground
Purple = Positive

twisted the wires together to test and now it works.

tomorrow I'll install the emblem. :-)

 

I am working on a similar project although in the great history of Ford of course I have different wire colors. I have the following.
from left to right with the plug disconnect button up:
brown w/yellow strip
black w/yellow stripe
violet w/red stripe
white
white w/grn stripe

part number 8L3T-14B002AG

 

The test chart in post #5 above shows the pin numbers, which you can verify with a meter with the resistance readings.