Backup Camera Malfunction

[airline tech]

A quick check and the circuit outage signal to the BCM runs right with the video feed for the camera C422 , so the camera video is caused by the light issue, most certainly the issue

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[airline tech]

So, just a quick clarification here, I looked at the wiring diagram for the exterior lights.
Your codes indicate a lighting issue (Short To Ground or Open), I am going with a shorted circuit due to your camera issue.

I noted that at connector (C422) the exterior lights join in that connector and run from C422 all the way up to the BCM. In that run the Video Feed for the camera branches off to the APIM (Sync Module)
The video feed wire set is self-enclosed in a shielded wire to protect the data feed from outside electrical interference.
I am thinking that the (Exterior Lighting) circuit short is bleeding over into the Video Feed, think a bad signal on a TV screen.
So, it appears the issue is on the Right side, a portion of that circuit is shorted, and I have a feeling it is in the R/Rear Tail Light assy, if LED (EXPENSIVE) and probably part of the reason for (AS-IS) and was not fixed.
You need to focus on Park / Stop Turn lighting. check all bulbs / led lights for operation.
You may have a bad (shorted) wire on the circuit, but I would look at the lights themselves first.
The rear tail light assy is the most likely culprit, pull it and disconnect and see if camera comes back.
There are many possible add on mods the previous owner could have tapped into the lighting circuit for. This is the needle in the haystack as to where (If so)

The Headlights (Auto) and (Off) codes might be a separate issue, and may be a Forscan change to get a aftermarket part to function as DRL's.
Or it is all due to the Park Light issue.

 

[airline tech]

Here is where the Camera ties into the Headlamp Switch circuit and I see exactly why the camera is not working. The issue is with the Camera ground circuit and how it is tied into the Headlamp Switch (itself)

If you look below at the Interior Lighting Circuit
This also shows the circuit (Command) from the headlamp switch and BCM.
Ref: the 2 codes for headlamp (Auto) & (Off) - The common between the 2 codes is the ground pins 4 & 5 - (Pin 4 is ground for the Headlamp Switch / Pin 5 is a ground for the O/H Console Lights and Rear Cargo Lights and Background Illum (Ambient) lighting they tie together with a splice S243 - see next Ground Diagram

I am thinking the (Autolamps) Auto & Off is being disabled by the short circuit. That is why you see the codes for this.
I am thinking you are possibly manually turning on the headlights, they are working but most likely seeing a weak light output or flickering, the amperage draw is greater with the lights on and overcomes the ground issue, the camera though is not able to get a good ground.

Look at the diagram below and picture the Right parking / stop lamp and license plate lighting being shorted to ground.
So, either the issue is at the headlamp switch by the (switch) codes, or the exterior lights circuit is taking out the (switch) circuits (Disabled by Circuit Protection)

This is why it is important to check the exterior lighting circuit for operation.

Now look at the ground circuit, note the Headlamp Switch shares the Ground with the Rear Camera. So, with your specific issue it looks like you have a short with voltage on the (Ground) circuit. Coming from either the Headlight Switch circuit or the Right-Side Exterior Lighting circuit

Being that you have a code for Right Exterior lighting, with a possible issue at the Right-Side Marker, check that especially if someone tapped into it for Grille Lights and then dig deep into the whole circuit to view any outage of lights.

If nothing noted: visually

Disconnect right side lighting one at a time, check for any change in camera operation, then the headlamp switch. if nothing changes then it is a deep dive in the wiring circuit itself to find the short and use the Ground Circuit check below @ G202

I am curious if you have any other lighting issues, interior lights or exterior lights, the interior lights to look at the Overhead Console, Footwell Lighting, Background Illum and the Rear Cargo Light, just wanted to see if those are affected as well with this issue.

The Common Ground Point for this is G202, it may be worth just checking this point and while having access - Use a meter on voltage scale, and with engine running check this point for voltage. Use a nearby ground point as (-) and the positive lead to G202. This will serve as a check point if you get a voltage reading here, as you disconnect lights etc. look for the voltage reading (If any) to disappear.

It may be possible that all you have is a bad ground here, and the Park Light code is a separate issue. That's why you should at least check this ground point.

If by chance you do not have voltage on the G202 then the Headlamp Switch codes are generated by a bad ground connection and the Park Light is a separate issue and may just be simply burned out.
So, in case this is a Bad Ground connection, with looking at the ground circuit above you will have lost ground between the Headlamp Switch and G202.
There is (1) splice point in that run between them S243
I suspect your Footwell Lights would be a quick visual for a ground loss, as they would not work with a ground loss.

But before you rip dash appart for a bad ground, I would check the headlamp switch connector ground on pins 4 & 5.

You might try turning the switch to off or disconnect connector , and try camera. This should prove a lighting issue vs a ground issue. Might isolate the issue, as you should not have any voltage on the lighting system with the switch disconnected.

The best I can get is approx location: Near the Hazzard Switch

 

[Uroboros]

Ok,

Codes: First Run
B1305:01 - Hood Latch , Hood Open During Test (?)

Related:

B143B:11 - Short to Grd -Autolamp Circuit - Input
B143C:11 - Short to Grd - on Headlamp Circuit Input
B1448:15 - R/R Stop Position Lamp - Short to Batt or Open - Output Circuit, this one is confusing because if you dig into the code, it has you check the RF Side Marker Light,

So, check that for proper operation and compare to the LF Side marker.

I think the side marker is generating the other (2)
Note: If I recall tapping into the RF side marker light is a popular spot for getting a power source for extra front lighting, Grille Lights etc - Might check wiring at the light, If it was done properly there would be a harness (Tee) adaptor on it.

Camera:

B115E:08 is a generic code - Cam Module Bus / Signal Message Missing on LIN Circuit
It leads you down a in depth wire check, which may be a wiring issue.

But first try finding anything in Forscan about Rear Parking Aid - Initialization as it may just need to be reconfigured.

So, it may take some Indepth wire checks for a fix, but I would try to at least pull and clean C411.
and with a trusty helper - put truck in reverse - - to get camera up and shake the harness where it comes out of the tailgate and note any camera display difference

Thats all of the easy checks and depending on how comfortable you are with a meter; the rest is checking for circuit integrity. But for a full test involves ripping part of the dash out to get access to the APIM Connector, the BCM Connector is at least easy access.

If all above options do not work, then it is a dive into the wiring.

I would at least start with a simple Power & Grd check:

C4357 = Camera Connector

Key On

C4357 - Pin #1 to Grd - 12 Volts

Key Off

C4357 - Pin #5 to Grd - 3 Ohms

​

Terminal Part Number​	Service Part Number​	Size​
8U5T-14474-BA	DU2Z-14474-CA	0.64

​

Pin​	Circuit​	Gauge​	Circuit Function​	Qualifier​	Terminal Part Number​
1​	CBB23 (BN-YE)​	20​	FUSE - 23 OR CIRCUIT BREAKER​	​	8U5T-14474-BA​
2​	VDN04 (VT-WH)​	20​	CTRL MOD. - LIN BUS # 4​	​	8U5T-14474-BA​
3​	RMP19 (BU-GY)​	20​	CAMERA - PARKING AID REAR VIDEO -​	​	8U5T-14474-BA​
4​	VMP19 (WH-GN)​	20​	CAMERA - PARKING AID REAR VIDEO +​	​	8U5T-14474-BA​
5​	RMP51 (BK)​	20​	CAMERA - PARKING AID REAR VIDEO D​	​	8U5T-14474-BA​
6​	*​	*​	Not Used​	​	N/A​

In my 2019 Ranger Wildtrak 3,2 A6 pins from camera connectors are a bit different : 5 is blind and 6 is a black
Camera is EB3T-19G490-BB
Do you have a diagram for my Ranger ?

 

[airline tech]

In my 2019 Ranger Wildtrak 3,2 A6 pins from camera connectors are a bit different : 5 is blind and 6 is a black
Camera is EB3T-19G490-BB
Do you have a diagram for my Ranger ?

Only US versions- sorry- for the connectors

 

[airline tech]

In my 2019 Ranger Wildtrak 3,2 A6 pins from camera connectors are a bit different : 5 is blind and 6 is a black
Camera is EB3T-19G490-BB
Do you have a diagram for my Ranger ?

I will try to dig , and try to locate but first
Sorry, country jargon/ lingo
But what is #5 Blind? Are you referring to NCA
The non colored shielded Ground?
I can look at different diagrams and try to see if I can find non US connectors, and this will help in pinpointing a difference.
Thanks

 

[airline tech]

Sorry, I went through all avenues I have access to, no luck on Wildtrack, I have access to the Wildtrack manuals, but the manuals are empty, just basic Maintenace items.

So, if you have a six-wire plug, then it is a process of elimination.
Key on, find Power Wire

That leaves 4 wires.

3 wires will be in a separate harness by itself - with one being the black (Ground), these 3 wires are the video feed. (They run with the harness) but are separated from the other 2 wires in the harness.

Is this run (3-Wires) = +Video / - Video & (Shielded Ground) - This is the only ground wire in the harness. (This is called a shielded wire; it protects the video feed from electrical interference (distortion)
If you reference the diagram above - this is what the loops around those 3 wires means (Shielded Wire) - The Ground (Shield) is actually wrapped around both video feed wires (To Protect Them)
Similar to a COAX cable.

The last wire (Remaining) is the (LIN) feed.
and I am assuming you have 1 empty cavity in the connector. (Blind?)
I am thinking this is what you meant by Blind.

 

[JasonT1273]

Quick follow up now that I've exhausted my level of comfort with the wiring intricacies... I am at my local dealer and it has been finally determined that someone at some point did some harness work underneath the truck and had pins either missing or placed wrong in the harness in the run from the drivers side to the rear camera harness that runs up into the tailgate. This is after the diagnostic path took us all the way to the APIM. I now have a working camera. I have no recourse as the purchase was as-is and the warranty coverage I purchased does not, to my knowledge, extend to wiring harnesses. That is a discussion I will have to have with them but I don't hold out much hope. Attached are pictures for reference. Notice the cleanliness of the harness compared to the rest of the underbody which I haven't washed since I bought the truck.

 

[Jason B]

Looks like someone swapped connectors, possible due to water intrusion or corroded pins. IF that was done by Ford, there would be a record of it.

 

[airline tech]

Glad - the issue was finally resolved, it sucks it was not an easy find.

 

[Uroboros]

Sorry, I went through all avenues I have access to, no luck on Wildtrack, I have access to the Wildtrack manuals, but the manuals are empty, just basic Maintenace items.

So, if you have a six-wire plug, then it is a process of elimination.
Key on, find Power Wire

That leaves 4 wires.

3 wires will be in a separate harness by itself - with one being the black (Ground), these 3 wires are the video feed. (They run with the harness) but are separated from the other 2 wires in the harness.

Is this run (3-Wires) = +Video / - Video & (Shielded Ground) - This is the only ground wire in the harness. (This is called a shielded wire; it protects the video feed from electrical interference (distortion)
If you reference the diagram above - this is what the loops around those 3 wires means (Shielded Wire) - The Ground (Shield) is actually wrapped around both video feed wires (To Protect Them)
Similar to a COAX cable.

The last wire (Remaining) is the (LIN) feed.
and I am assuming you have 1 empty cavity in the connector. (Blind?)
I am thinking this is what you meant by Blind.

Yo are right : 1 empty cavity in the connector.

my investigation just restarted - and I found 2 errors :
B115E(08) Bus Signal/Message Failure
and wher the Reverse gear is on - another fault : C1001 FORD Vision System Camera General Electrical Failure

Camera is checked on the other car - works
Possible causes :
– Video Camera harness is open or shorted
– Video Camera circuit poor electrical connection

And again - it is a bit difficult to find without a diagram
Is there anyone with FORSCAN which is keen to advice ?

 

[airline tech]

Yo are right : 1 empty cavity in the connector.

my investigation just restarted - and I found 2 errors :
B115E(08) Bus Signal/Message Failure
and wher the Reverse gear is on - another fault : C1001 FORD Vision System Camera General Electrical Failure

Camera is checked on the other car - works
Possible causes :
– Video Camera harness is open or shorted
– Video Camera circuit poor electrical connection

And again - it is a bit difficult to find without a diagram
Is there anyone with FORSCAN which is keen to advice ?

I would possibly go to the connector posted above - disconnect and clean , check for corrosion as well.
It should be on the left frame rail near the left rear tire.
I am pretty sure that the pic taken is in that location.

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