[NavigatorV8]

i upgraded my SYNC 2, so i have heated seats buttons now. The next step will be the hardware, means the heated mats. For that, i need a wiring diagram from the connector under seat. I guess, that the wiring will go till the plug. Can somebody hel me?

 

[NavigatorV8]

nobody can help me? didn´t find the right connector under seats

 

[ExplorerPIU2013]

My best guess is if it didn't come with heated seats, there won't be wires to plug into for heated seats.
Ford isn't going to wire a vehicle for every option then just leave then off.
Ford only runs the wiring if it originally gets the option.

Best thing I can offer is finding out which pin out controls the seat heater from which ever control module then wiring it from that pin out # to control a relay only connected to battery on with the key switch.

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[ExplorerPIU2013]

Other option is a manual switch seat heater from battery switched by ignition only thru a relay. That way when you key off the seat heater goes off even if switch is left on.

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[ExplorerPIU2013]

Sorry it"s no easier than this.

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[ExplorerPIU2013]

The IPC module is the one that controls the seat heaters.
I don't as of now know it's exact under dash location nor how hard it is to get to.

I'm sure with a little research I can find out which pin # is the one that controls the seat heaters if you're willing to go that far.

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[NavigatorV8]

The IPC module is the one that controls the seat heaters.
I don't as of now know it's exact under dash location nor how hard it is to get to.

I'm sure with a little research I can find out which pin # is the one that controls the seat heaters if you're willing to go that far.

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That would be great

 

[ExplorerPIU2013]

Looks like it's way more complicated than just an output of the IPC.
Several interlinked controls (BCM) (FCIM) (HVAC Module) come together to control
the seat heaters.
Almost easier to sell the vehicle you have and trade for one with seat heaters.

The manual seat heater pads wired directly with relays to a manual switch
is going to be the way to go.

Go to BBB Industries- Premium Alternators, Starters, Power Steering Products | BBB Industries- Premium Alternators, Starters, Power Steering Products

Click the Technical Info tab and select TSB and Wiring Diagrams
You will have to input Name, Company (self), email and Level of Trade (DIY).

You can go there and search the diagrams for yourself.

I would post them but there is a TOS on posting the images.
Sorry it isn't any easier than A> B> C.

 

[NavigatorV8]

found the right wires under seat, if i press the button in display, there is no voltage. Maybe i need another HVAC?

 

[ExplorerPIU2013]

Maybe it is a ground output, did you check for that possibility on the suspected seat heater wire ?

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[NavigatorV8]

Maybe it is a ground output, did you check for that possibility on the suspected seat heater wire ?

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I'll check that. Thank you


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[NavigatorV8]

i checked it. No power or ground at affected wire. It is the connector C312 at the passenger seat (C311 at driver seat). All wires present, but no function

 

[ExplorerPIU2013]

http://www.bbbind.com/tsb-wiring-diagrams/
Did you try looking at the wiring diagram
NavigatorV8 ?

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[NavigatorV8]

ya sure, i have now a book for dealer with the original diagrams

 

[ExplorerPIU2013]

With so many interconnected modules, having test voltages and resistance measurements to that circuit when in operation should be like a yes/no flow chart to determine which module to replace.

Maybe if not this is why it takes 3-4 expensive $$$ service trips to a Ford service dealer to fix such a problem as they are guessing also.

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