OEM brake controller activation

Matthew Owner/Technician Oregon Posted   Latest   Edited  
Resolved
Programming
2021 Ford F-150 Lariat 3.5L (8 998) 10-spd (10R80)
No Brake Controller Activation Or Gain Control

I got called to a shop to activate an OEM brake controller on this truck. They had originally ordered the controller and installed it and requested programming/activation. 

I verified proper installation and used Forscan to enable the controller, Then I used FDRS (which I have just used for the first time on this vehicle) To program the module and verify.

There are no codes for it and it shows up on the module list. Trailer plugged in it recognizes the trailer but It won't change the gain or do anything with the brake controller itself. I can attempt to move the gain on the controller itself and on the steering wheel options and there's no response. The lights work correctly but nothing associated with the brake controller itself.

There ARE TPMS codes stored for them installing aftermarket tires and wheels. I don't see how that would block it even recognizing the controller tho. They have a fleet of trucks and I tried the controller in another truck and it worked fine. When no trailer is hooked up it says “no trailer” when you move the slider on the working truck. On the one I'm working on it makes no difference. I didn't see any way through the Ford factory side to enable a controller. just program it. 

Any help would be greatly appreciated.

Edit: I've also downloaded the 700+ page owner's manual and checked to see if any extra fuses were needed for the brake controller, but I've found nothing.

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Interesting
Ricardo Diagnostician
Michigan
Ricardo
 

I don't use fdrs but on ids the brake controller activation is in programmable parameter,, personalization

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Matthew Owner/Technician
Oregon
Matthew
 

I have always used IDS also, but the 2021 requires FDRS and is different than the 2020 and previous models. I've never had issues with any older ones.

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Kevin Technician
Alberta
Kevin
 

I got confused once before as if you use a trailer as a test equipment, you will find that in park you would have actually up to a 10 second delay before the module transfer power over. I might be wrong on your particular model but f350 with 6.4 powerstroke is when I got my first one up to newer powertroke 2020model

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Fred Owner/Technician
Virginia
Fred
 

I tried to add cruise control to a 2019 Ford Transit. I installed the new steering wheel, used FORSCAN to update the as built and then programmed the PCM. It recognized everything but would not operate he cruise. I think Ford has done something that requires their factory software to make things happen. I would be interested to hear if you can get this to work.

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Matthew Owner/Technician
Oregon
Matthew
 

I have the factory VCM 2 and IDS and FDRS and I have yet to find a way to make this work. I was hoping perhaps a dealer tech might be able to chime in and let me know what I'm missing. I'll keep everyone updated.

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Dennis Owner/Technician
Michigan
Dennis
 

I can't remember if it was a 2020 or 2021 f550 that i did​.​The dealer said it didn't have the plug for the module. They gave up after 3 days.I activated it with fdrs. Then the only way it would work is if the headlights where on​.​Customer took it like that.I did not ad any fuses or modules​.​The brakes work with the lights on.

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Interesting
Matthew Owner/Technician
Oregon
Matthew
 

Interesting. I'll try that. Thank you.

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Dennis Owner/Technician
Michigan
Dennis
 

How did it work out for you.

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Matthew Owner/Technician
Oregon
Matthew
   

My customer has been out of town and should have been back last night. I'm hoping to hear back today about the headlight theory. Edit: I just heard from my customer and no luck. With headlights on Auto, or manually on, truck running or off. Back to to more testing.

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Matthew Owner/Technician
Oregon
Matthew Update
 

I got my hands on the 23 page TSB from Ford for installing the OEM brake controller. I'll be looking at it tonight and hopefully it will give me some insight. I'll host it later if anyone else runs into this and this fixes the issue.

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Update Ð Awarded
Dennis Owner/Technician
Michigan
Dennis
 

Did you ever find a fix.

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Matthew Owner/Technician
Oregon
Matthew Resolution
 

This vehicle is finally fixed. It took getting a hold of the OEM procedures for installing a brake controller. The trucks come with a module and a spot to put the slider hardware, but to install the brake controller you need to order the kit ML3Z-19H332-AA, which comes with the in dash slider and a new module that you use to replace the existing module. Then it must be installed with FDRS…

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Resolution Ð Awarded