Are the side mirrors with turn signals plug and play?

[GrabThatBlue]

Is there an error in the diagram? I think so.

I found something that is making me very confused.
The wire diagram of the left side mirror named connector C520 shows something weird.

As you can see in the diagram, there are 3 different side mirrors:
1. Mirror with Memory
2. Mirror without Memory
3. Right Hand Drive Mustangs

From now on, I'm going to ignore number 3, the right hand drive Mustangs, because that's information we don't need in this research.

If you look at where the turn signal power is coming from, it says SLOT 3.
If you look at SLOT 3, there is some confusion and I think there in an error in the diagram.

1. Mirror with memory it says the cable is Green-Brown
2. Mirror without memory it says the cable is Grey-Orange

I have a side mirror on my car that doesn't have turn signals.
This means the cable in SLOT 3 should be Grey-Orange. But in fact my cable in slot 3 is RED.

I have bought a side mirror that has turn signals.
This means the cable in SLOT 3 should be Green-Brown. But in fact the cable in slot 3 is RED also.

This means the wire diagrams are not correct and that the cable colors are different than what the diagram says. @roket also confirmed that the wire colors are not correct.

But how to identify the turn signal cable? Well, it should still be slot 3 right?
In this case the RED cable is in SLOT 3, so the RED cable should be the turn signal wire.

Well.. the confusion is going to get worse..

My side mirror without turn signals already have a cable in SLOT 3.
Why would I have a cable in SLOT 3 if I don't have turn signals? Pre-wired you would say right?
This insinuates that you only have to add the turn signal units and mirror caps to make this to work and you don't even need a whole new side mirror, if this is the case.

But this is not the case. I compared both side mirrors with and without turn signal with each other and I found out that a wire in SLOT 4 is missing on the side mirrors without turn signals.
On the side mirrors with turn signal, SLOT 4 is wired with a ORANGE cable.

If you look at the diagram, you can see that SLOT 4 is used for power mirrors.
So why is SLOT 4 not used in the side mirror without turn signals?
The side mirrors without turn signals also have the power mirror function.

So I came to the conclusion that the wire colors and the description of the used SLOTS in the diagram are both not correct.

Orange is also a cable that is mostly used for turn signals. And it is a very big coincidence that SLOT 4 has an orange cable in it on the side mirrors with turn signals while the side mirrors without turn signals don't have any wire connected in SLOT 4.

@Sofa King You also mentioned PIN 3 is the turn signal. Can you solve this mystery please?

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[abz]

My Recaro seats cancelled out the option for me to have the door harness of the 401A, and instead I have the Premium door harness which does not support turn signals.

so is that 400A door harness? and I have to go through what you're doing to add turning signals to side mirrors of my 400A?

 

[GrabThatBlue]

so is that 400A door harness? and I have to go through what you're doing to add turning signals to side mirrors of my 400A?

That is correct. If you have the 401A equipment group but you have Recaro seats, you will get the 400A door harness and have to go through this hell like me.

I'm still figuring out what wire is the turn signal wire since the diagrams are not correct.

 

[Sofa King]

Is there an error in the diagram? I think so.

I found something that is making me very confused.
The wire diagram of the left side mirror named connector C520 shows something weird.

As you can see in the diagram, there are 3 different side mirrors:
1. Mirror with Memory
2. Mirror without Memory
3. Right Hand Drive Mustangs

From now on, I'm going to ignore number 3, the right hand drive Mustangs, because that's information we don't need in this research.

If you look at where the turn signal power is coming from, it says SLOT 3.
If you look at SLOT 3, there is some confusion and I think there in an error in the diagram.

1. Mirror with memory it says the cable is Green-Brown
2. Mirror without memory it says the cable is Grey-Orange

I have a side mirror on my car that doesn't have turn signals.
This means the cable in SLOT 3 should be Grey-Orange. But in fact my cable in slot 3 is RED.

I have bought a side mirror that has turn signals.
This means the cable in SLOT 3 should be Green-Brown. But in fact the cable in slot 3 is RED also.

This means the wire diagrams are not correct and that the cable colors are different than what the diagram says. @roket also confirmed that the wire colors are not correct.

But how to identify the turn signal cable? Well, it should still be slot 3 right?
In this case the RED cable is in SLOT 3, so the RED cable should be the turn signal wire.

Well.. the confusion is going to get worse..

My side mirror without turn signals already have a cable in SLOT 3.
Why would I have a cable in SLOT 3 if I don't have turn signals? Pre-wired you would say right?
This insinuates that you only have to add the turn signal units and mirror caps to make this to work and you don't even need a whole new side mirror, if this is the case.

But this is not the case. I compared both side mirrors with and without turn signal with each other and I found out that a wire in SLOT 4 is missing on the side mirrors without turn signals.
On the side mirrors with turn signal, SLOT 4 is wired with a ORANGE cable.

If you look at the diagram, you can see that SLOT 4 is used for power mirrors.
So why is SLOT 4 not used in the side mirror without turn signals?
The side mirrors without turn signals also have the power mirror function.

So I came to the conclusion that the wire colors and the description of the used SLOTS in the diagram are both not correct.

Orange is also a cable that is mostly used for turn signals. And it is a very big coincidence that SLOT 4 has an orange cable in it on the side mirrors with turn signals while the side mirrors without turn signals don't have any wire connected in SLOT 4.

@Sofa King You also mentioned PIN 3 is the turn signal. Can you solve this mystery please?

I have seen many times on different cars, that the device (in this case, the mirror) does not have the same wire colors as the wiring harness. Are you able to look at the harness that is in the door that the mirror plugs into? The colors there should match the wiring diagrams... unless Ford really messed things up... I would not be too concerned with the colors on the mirror. You could verify the actual function of each by applying power... Are you sure you are looking at the connector in the proper orientation? If your original mirror had no wire at pin 4, the mirror adjustments should not work... Your pic of the original mirror is a bit small to see, but it looks like:


OLD mirror New mirror
Pin 1 blue blue
Pin 2 yellow yellow
Pin 3 empty orange

 

[GrabThatBlue]

I have seen many times on different cars, that the device (in this case, the mirror) does not have the same wire colors as the wiring harness. Are you able to look at the harness that is in the door that the mirror plugs into? The colors there should match the wiring diagrams... unless Ford really messed things up... I would not be too concerned with the colors on the mirror. You could verify the actual function of each by applying power... Are you sure you are looking at the connector in the proper orientation? If your original mirror had no wire at pin 4, the mirror adjustments should not work... Your pic of the original mirror is a bit small to see, but it looks like:


OLD mirror New mirror
Pin 1 blue blue
Pin 2 yellow yellow
Pin 3 empty orange

I got you. So you are actually saying that the numbers I gave to the wires are not correct and that the Blue Wire is PIN 1 instead of the Green-Purple wire. And that the orange wire should be the turn signal.

That will totally make sense if that is the case. But I was pretty sure I got the connector the right way. Let me go back to my side mirror and make a picture just like the connector in the diagram. and see what I did wrong.

 

[GrabThatBlue]

Okay, I went back and made the picture of the connector.
Please tell me I'm wrong with numbering the pins.
The only way to make this confusion make sense is that I numbered the PINS wrong.

But this is how I tried to idenfity the PINS. You see the red arrows on the connector on the diagram? I used these as a reference and this is how I numbered the wires on my connector.

Number 1 is Green-Purple
Number 2 is Grey
Number 3 is Red
Number4 is Orange

Please tell me that I'm wrong and show me the right way to identify the PINS.
Cause this doesn't make sense at all.

 

[GrabThatBlue]

Oh God!

I had to look the connector from the other side to make it make sense.

Jesus Christ, I unsolved the mystery!

Thanks @Sofa King

 

[GrabThatBlue]

But I'm not done with the mystery.

The wire diagram on PIN3 for side mirrors without memory say something very strange.

PIN3 = Turn Lamp Left Rear

I never seen anything like this written on a diagram for side mirrors. Why do they say turn lamp left rear?

If you look at PIN3 for memory mirrors it says Turn Lamp Left Mirror.

But for some reason the one without turn signals looks like it's a wire for the left rear turn signal on the car.

What is this kind of puzzle man??

 

[Sofa King]

Oh God!

I had to look the connector from the other side to make it make sense.

Jesus Christ, I unsolved the mystery!

Thanks @Sofa King

But I'm not done with the mystery.

The wire diagram on PIN3 for side mirrors without memory say something very strange.

PIN3 = Turn Lamp Left Rear

I never seen anything like this written on a diagram for side mirrors. Why do they say turn lamp left rear?

If you look at PIN3 for memory mirrors it says Turn Lamp Left Mirror.

But for some reason the one without turn signals looks like it's a wire for the left rear turn signal on the car.

What is this kind of puzzle man??

Yes, I think you got it!

The naming they use is probably to clarify the wiring location... the "left mirror" wire is from the DDM in cars with memory, the "left rear" wire is from the BCM as that is where it comes from when there is no DDM.

So, plug it in and try it out!

 

[GrabThatBlue]

Yes, I think you got it!

The naming they use is probably to clarify the wiring location... the "left mirror" wire is from the DDM in cars with memory, the "left rear" wire is from the BCM as that is where it comes from when there is no DDM.

So, plug it in and try it out!

OMG, I can't wait right now.
It's 14:40 right now, so I have enough hours to try it out before it gets dark, but my stomach hurts so bad because of the nerves that I want to start with it tommorow early in the morning, just in case..

 

[Sofa King]

OMG, I can't wait right now.
It's 14:40 right now, so I have enough hours to try it out before it gets dark, but my stomach hurts so bad because of the nerves that I want to start with it tommorow early in the morning, just in case..

LOL, no worries, best to start with a clear head (and un-twisted stomach).

 

[GrabThatBlue]

I'm still nervous to the core, but I'm going to prepare my tools and remove the door panel.
I'm so afraid of braking or damaging things but I have to do it! Wish me luck. I see video's of people doing this in 30 minutes. I' going to give myself 3 hours and be suoer easy with each step.

Update:

Mission failed on the first try. Could not remove the plastic cover behind the door handle.
Saw a video of a guy removing it with a Allen Key, that I also have, but didn't work for me. Saw another guy removing it with tape, didnt work either.

Now heading to the shops to find a picker tool.

Update 2:

I found the only pick tool on the island. This was the last one. OMG

 

[GrabThatBlue]

I think I'm screwed. I was almost there but I can't remove the side mirror connector from the harness. The location of the connector is hidden deep inside the door and you have to do this blindly. I can feel the connector in my hand but i don't know where to press and where to pull because I have no clue how it is connected.

I have never lost so much sweat in my life.

 

[GrabThatBlue]

I give up. Spent 2 hours trying to unplug the connector. Not a single chance.

 

[roket]

oh yeah, that connector is a nightmare to reach let alone disconnect. best of luck, you're gonna need every bit of it

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