Ford Fiesta Steering Wheel buttons not working

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Haldamiiiir

New member
Dec 3, 2020
1
0
Hey guys, I'm looking for some help. I installed a Tesla Style Android radio into my 2011 Ford Fiesta recently and everything works properly through the canbus except the Steering wheel controls. I've tried altering the canbus settings in the factory settings section but it didn't work. The radio can detect when the car is in reverse (for the camera to come on) and also when any of the doors are open so the canbus box is definitely working just not the steering wheel controls. I have the exact steering wheel controls as the original poster with the M button in the middle instead of the newer OK button. From what I understand, I need to take one of the wires coming off connector X1 and join it with another wire on connector A which is the ISO connection going into the back of the radio. This basically bypasses the canbus box for steering controls if I understand correctly. Problem is I have no idea which colour wires to join together! I also have a key2 brown wire coming off connector A that isn't going into anything but based on googling that's normal and can be ignored. Could someone provide photos or something as to which wires need to be joined
 

JRitman

New member
Jul 30, 2021
4
0
No key 1 I just have a Key 2 wire. I tried to cut all wires and linked one by one. Finally I connected a white with a blue and I got different voltage. I restored all other and it works now.
Thank you for your reply I deeply appreciate.
Hey, Just wondering do you have any images for that change ? am having the same problem, I cant see key 1 but have key 2 in Pink left lose.
 

TorstenH

Senior Member
Feb 20, 2021
832
198
Realme GT 2 Pro
There's are two different ways the SWC works:
1. Via Canbus. In this case the correct canbus settings are required on the head unit and it's important to know that not all cars propagate the SWC to its canbus. So it may not work for your car even there is a canbus box in place.
The key functions are fix defined by the head unit firmware and can't be changed by the SWC settings app to assign functions to the buttons of the steering wheel.

2. Via resistance. The buttons of the steering wheel build a resistance matrix. You car has a KEY wire and a KEY GND wire and depending on which key you press the resistance changes (can be checked by measuring the resistance between KEY and Key GND with a multimeter).
The head unit has a connection for KEY1, KEY2 and KEY GND. KEY2 is only needed if you have a steering wheel with many buttons and your car manufacturer implemented two resistant matrices.
In this case the SWC settings app can be used to assign specific functions to the buttons.
 

JRitman

New member
Jul 30, 2021
4
0
There's are two different ways the SWC works:
1. Via Canbus. In this case the correct canbus settings are required on the head unit and it's important to know that not all cars propagate the SWC to its canbus. So it may not work for your car even there is a canbus box in place.
The key functions are fix defined by the head unit firmware and can't be changed by the SWC settings app to assign functions to the buttons of the steering wheel.

2. Via resistance. The buttons of the steering wheel build a resistance matrix. You car has a KEY wire and a KEY GND wire and depending on which key you press the resistance changes (can be checked by measuring the resistance between KEY and Key GND with a multimeter).
The head unit has a connection for KEY1, KEY2 and KEY GND. KEY2 is only needed if you have a steering wheel with many buttons and your car manufacturer implemented two resistant matrices.
In this case the SWC settings app can be used to assign specific functions to the buttons.
Hi , I the original canbus in no steering wheel control or door opening or close detected , I got a different on and that show when my door is open but it’s show on the wrong side of the car , but again now steering control
 

TorstenH

Senior Member
Feb 20, 2021
832
198
Realme GT 2 Pro
Hi , I the original canbus in no steering wheel control or door opening or close detected , I got a different on and that show when my door is open but it’s show on the wrong side of the car , but again now steering control
Door can be swapped in the canbus settings.
Check the wiring diagram of you original radio / head unit if there is a KEY or SWC wire.
 

JRitman

New member
Jul 30, 2021
4
0
Door can be swapped in the canbus settings.
Check the wiring diagram of you original radio / head unit if there is a KEY or SWC wire.
I will have a look, but steering wheel control still doesn’t work, but it’s also effected my car locking too , which strange. I need to check wire but I try to search but can’t find no reference to match it
 

JRitman

New member
Jul 30, 2021
4
0
Door can be swapped in the canbus settings.
Check the wiring diagram of you original radio / head unit if there is a KEY or SWC wire.
Hey, thanks for advice i found the setting for the door now, but something seem odd, its seem like I cant lock my car , am so confused what I done wrong
 

mikeycore

New member
Aug 5, 2021
1
0
I have exactly the same problem. I don't have 1 button on either the radio or the steering wheel. I've tried everything and I'm not getting anywhere with the seller.
 

The Rockk

New member
Sep 18, 2011
1
0
UPDATE

UPDATE:
After messing about with the wiring and doing some research i figured out how to sort it and it worked for me. I had to cut the pink (SW1 wire) and connected this to the pin 10 black (GND) wire from the Connector x1 using some old cable to make it longer and connect them together , this gave a different voltage each time a button was pressed and in the steering wheel learning app it recognised it and i was able to set it up, so far it is all working.

If you need any help you can email me: [email protected] and i will try to help you
Hi,
ig i
UPDATE

UPDATE:
After messing about with the wiring and doing some research i figured out how to sort it and it worked for me. I had to cut the pink (SW1 wire) and connected this to the pin 10 black (GND) wire from the Connector x1 using some old cable to make it longer and connect them together , this gave a different voltage each time a button was pressed and in the steering wheel learning app it recognised it and i was able to set it up, so far it is all working.

If you need any help you can email me: [email protected] and i will try to help you
Hello. If I send you an email can you help me? I have the same problem: steering wheel controls not working. From the pictures it looks like we have the same connectors. Let me know if you are available for help. I would be grateful
 

iron_savior

Member
May 12, 2011
23
3
Hello guys i have the same issue as the OP. I have purchased a second hand android screen for my Ford Fiesta MK7 1.6 Ti-VCT 120PS 2009. This screen is exactly the same as the OP. The thing is that although the car's main radio unit buttons work, the steering wheel buttons don't work because my car's steering wheel buttons don't send signal to the android unit via resistance but via CAN to the canbus box which is not programmed to support the steering wheel CAN signal. To better understand my car's radio setup, see the attached pictures that show what is my dashboard, the car radio unit plugs-cabling and also the steering wheel buttons. My car's radio is without "Sync".

After researching, i think the way for the steering buttons to work is to purchase a canbus box that is programmed to also support the steering wheel buttons via CAN.

Does anybody of you with same car model and radio setup like mine managed to make the SWC work? I would appreciate very much any help.
Thanks in advance.

pic1.PNG

pic2.jpg

pic3.jpg
 

iron_savior

Member
May 12, 2011
23
3
Hello again, can someone share with me the pinout diagrams of the following ford parts:

1) AUDIO FRONT CONTROL MODULE (ACM) (2 plugs, one 14pins + one 12pins)
see: picture1 attached
2) FRONT CONTROL/DISPLAY INTERFACE MODULE (FCDIM) (1 plug 12pins)
see: picture2 attached
3) FRONT CONTROLS INTERFACE MODULE (FCIM) (1 plug 8pins)
see: picture3 attached

I have searched the internet but wasn't able to find it.
 

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iron_savior

Member
May 12, 2011
23
3
Hello guys i have the same issue as the OP. I have purchased a second hand android screen for my Ford Fiesta MK7 1.6 Ti-VCT 120PS 2009. This screen is exactly the same as the OP. The thing is that although the car's main radio unit buttons work, the steering wheel buttons don't work because my car's steering wheel buttons don't send signal to the android unit via resistance but via CAN to the canbus box which is not programmed to support the steering wheel CAN signal. To better understand my car's radio setup, see the attached pictures that show what is my dashboard, the car radio unit plugs-cabling and also the steering wheel buttons. My car's radio is without "Sync".

After researching, i think the way for the steering buttons to work is to purchase a canbus box that is programmed to also support the steering wheel buttons via CAN.

Does anybody of you with same car model and radio setup like mine managed to make the SWC work? I would appreciate very much any help.
Thanks in advance.

View attachment 5581721
View attachment 5581723
View attachment 5581725
Hello again, can someone share with me the pinout diagrams of the following ford parts:

1) AUDIO FRONT CONTROL MODULE (ACM) (2 plugs, one 14pins + one 12pins)
see: picture1 attached
2) FRONT CONTROL/DISPLAY INTERFACE MODULE (FCDIM) (1 plug 12pins)
see: picture2 attached
3) FRONT CONTROLS INTERFACE MODULE (FCIM) (1 plug 8pins)
see: picture3 attached

I have searched the internet but wasn't able to find it.
Anybody?
 

iron_savior

Member
May 12, 2011
23
3
Good morning to the community. Yesterday i found sometime to deal with the steering wheel issue and after troubleshooting i managed to make it work at last so i share my findings.
So for someone like me with a Chinese android unit that everything works except the steering wheel buttons then the following solved my problem.

Warning. The fix bellow applies for my wiring setup. But for someone that has electrical, electronics background can easily apply it to his setup. So you have been warned, this fix is to be applied from people that know what they are doing. In any case, you use it at your own risk, i am not held responsible if you break your device.

1) From the Fiesta's OEM display 12pin plug stripe the "SWC1+" or "SMC" cable (Check Fiesta's official wiring diagrams to identify the cable color and pin number) and connect the "Key1" or "Key2" cable to it (for me it worked with "Key1") of the 16pin android display main plug (see attached images. Take the pin-out numbers as a reference and not the cable colors as each Chinese harness may have different cable colors but the pin-out functions based on pinout numbers is the same for every 16pin android unit).

2) Again from the 12pin Fiesta's OEM display 12pin plug stripe the "SWC1-" or "SMC Ground" and "GND" cables (Check Fiesta's official wiring diagrams to identify the cable colors and pin numbers) and bridge them with a cable.

3) Confirm that the "GND" cable from 2 step is connected to the "GND" cable of 16pin android main plug (Check attached images).

The key point for the above fix to work is the that the "SWC1-" or "SMC Ground" and "GND" cables must have common the "GND" cable that is connected to the 16pin android main plug and not any other "GND" point on the car.

I hope the above to help someone to fix his steering buttons.
 

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  • 1
    Hello guys.

    Like you I have problems with SWC, also I have only Key 2 wire ( Blue/White) and nothing else no pink wire, seriously I'm lost. Seller in Aliexpress have no idea about what I'm asking. I tried everything wiring cables to each other in all possible combination 🤪🤪🤪, I'm tired and in lack of ideas. If someone had resolve the problem I appreciate any help.
    Ford Fiesta Trend 2016
    What is connected to your key1 wire?
    1
    What is connected to your key1 wire?
    No key 1 I just have a Key 2 wire. I tried to cut all wires and linked one by one. Finally I connected a white with a blue and I got different voltage. I restored all other and it works now.
    Thank you for your reply I deeply appreciate.