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Installing factory brake controller?

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The_Auto_Tech

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To save some people trouble of having to dig around -

1. Purchase ML3Z-19H332-AB from whatever Ford dealer you wish.

2. Remove coin holder from dash using plastic trim tool. If you pull on it outwards it'll give you a little bit of space to wedge a trim tool behind it and pop it out the rest of the way.

3. Disconnect the connector from the coin holder, connect the trailer brake control switch, and pop it into the dash. It will only fit in one way.

4. Remove old trailer brake module from driver's footwell area by unplugging both gray and black connectors, removing the two 10mm bolts, and pushing the module upwards to disengage the plastic clip from the bracket.

5. Install new trailer brake control module and reconnect connectors.

6. Fire up FORScan and load the vehicle, enter the module configuration and programming section (looks like a computer chip), enter the IPC module configuration (highlight it and press the play button), scroll down and change Trailer Brake Controller and Trailer Brake Gain Setting to Enabled instead of disabled, then click write. Cycle key.

7. Clear all DTC's under the DTC button, cycle key, and read DTC's. You should have one under TRM for module not configured. Enter module configuration and programming again, but this time go into as-built data for TRM. There will be a button to load as-built data for the module from the internet. Load it, write the new values, clear DTC's, and cycle key again.

8. Re-check for DTC's and you should have none stored. Squeeze the trailer brake controller switch and press the gain up and down buttons and verify the in the cluster display all functions are working.

9. Congrats!

I threw the coin holder and old module in the garbage as I will never need them again, and they aren't worth any value in resale because they are so cheap new.
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tony72cutlass's'

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To save some people trouble of having to dig around -

1. Purchase ML3Z-19H332-AB from whatever Ford dealer you wish.

2. Remove coin holder from dash using plastic trim tool. If you pull on it outwards it'll give you a little bit of space to wedge a trim tool behind it and pop it out the rest of the way.

3. Disconnect the connector from the coin holder, connect the trailer brake control switch, and pop it into the dash. It will only fit in one way.

4. Remove old trailer brake module from driver's footwell area by unplugging both gray and black connectors, removing the two 10mm bolts, and pushing the module upwards to disengage the plastic clip from the bracket.

5. Install new trailer brake control module and reconnect connectors.

6. Fire up FORScan and load the vehicle, enter the module configuration and programming section (looks like a computer chip), enter the IPC module configuration (highlight it and press the play button), scroll down and change Trailer Brake Controller and Trailer Brake Gain Setting to Enabled instead of disabled, then click write. Cycle key.

7. Clear all DTC's under the DTC button, cycle key, and read DTC's. You should have one under TRM for module not configured. Enter module configuration and programming again, but this time go into as-built data for TRM. There will be a button to load as-built data for the module from the internet. Load it, write the new values, clear DTC's, and cycle key again.

8. Re-check for DTC's and you should have none stored. Squeeze the trailer brake controller switch and press the gain up and down buttons and verify the in the cluster display all functions are working.

9. Congrats!

I threw the coin holder and old module in the garbage as I will never need them again, and they aren't worth any value in resale because they are so cheap new.
Awesome write up!!!!!!!!
 

TexasTruck

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TexasTruck

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I'd assume that's probably what you have going on. The module itself needs the as built data programmed into it for new installation.
I followed the steps for the TRM and confirmed the IPC settings in FORSCAN, no joy for the TRM.

Since FORSCAN is configured for my VIN number which didn't come with a trailer brake controller from the factory, won't loading the TRM AS-BUILT data only have settings for my truck which didn't have a trailer brake controller to begin with? I'm not sure sure how that all works though.....

FORSCAN still shows the DTC as follows:
Ford F-150 Installing factory brake controller? 1704489259304


Here are the settings in the IPC:
Ford F-150 Installing factory brake controller? 1704489359484
 
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The_Auto_Tech

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I followed the steps for the TRM and confirmed the IPC settings in FORSCAN, no joy for the TRM.

Since FORSCAN is configured for my VIN number which didn't come with a trailer brake controller from the factory, won't loading the TRM AS-BUILT data only have settings for my truck which didn't have a trailer brake controller to begin with? I'm not sure sure how that all works though.....

FORSCAN still shows the DTC as follows:
1704489259304.png


Here are the settings in the IPC:
1704489359484.png
It will load the as-built data based on the module part number, which is what you want. The fault you have is basically saying that your TRM isn't configured, which loading the as-built data in fill fix.
 

TexasTruck

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It will load the as-built data based on the module part number, which is what you want. The fault you have is basically saying that your TRM isn't configured, which loading the as-built data in fill fix.
Thank you, Ok, makes sense..... I did load the AB data from the internet as described in the steps, but as I said above the TRM DTC still triggers. I have the latest FORSCAN app for Windows, I'll try again I guess....

In the IPC settings, I noticed there is a third setting that is disabled. Do I need to enable it too? Trailer Brake Module?

Ford F-150 Installing factory brake controller? 1704545469862
 

Jesse-Infotainment

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A little more to it.

Needs to be enabled in the BCM, PCM and IPC

You need to update the TRM as build to that of one that has TBC from OEM. The as build at 791 in a truck that doesnt have TBC is a place holder Not actual TBC data. Its different.
 

1lowcourier

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A little more to it.

Needs to be enabled in the BCM, PCM and IPC

You need to update the TRM as build to that of one that has TBC from OEM. The as build at 791 in a truck that doesnt have TBC is a place holder Not actual TBC data. Its different.
This is what I get when I tried to load. Any suggestions

Ford F-150 Installing factory brake controller? 20240107_104521
 

Jesse-Infotainment

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Jesse-Infotainment

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TexasTruck

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A little more to it.

Needs to be enabled in the BCM, PCM and IPC

You need to update the TRM as build to that of one that has TBC from OEM. The as build at 791 in a truck that doesnt have TBC is a place holder Not actual TBC data. Its different.
Thank you @Jesse-Infotainment for always helping us out.

So loading as-built really does mean, as built from the factory. Therefore, my truck did NOT include a TBC (hence the upgrade) loading the as-built for my VIN does nothing but restores the factory TRM properties.

I need the TRM as-built file for a truck that has a TBC and load that some how?

When you say it needs to be enabled in the BCM and PCM, are there user friendly properties like the following in the IPC?
Ford F-150 Installing factory brake controller? 1704717470415


Do we need to enable the "Trailer Brake Module" in the IPC too?

I'm confused..... sorry for all the questions.....

-Scott
 

Jesse-Infotainment

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Thank you @Jesse-Infotainment for always helping us out.

So loading as-built really does mean, as built from the factory. Therefore, my truck did NOT include a TBC (hence the upgrade) loading the as-built for my VIN does nothing but restores the factory TRM properties.

I need the TRM as-built file for a truck that has a TBC and load that some how?

When you say it needs to be enabled in the BCM and PCM, are there user friendly properties like the following in the IPC?
1704717470415.png


Do we need to enable the "Trailer Brake Module" in the IPC too?

I'm confused..... sorry for all the questions.....

-Scott
You do need to enable it in the IPC.

In the PCM and BCM its to enable the module is there so all of those modules know. THe IPC is to display the gain settings.

THere are even more things you could enable like the trailer settings if you dont have them in the APIM.

In the PCM you need to enable the TRM. There may be a user friendly Im not sure

Ford F-150 Installing factory brake controller? 1704718597784


In the BCM you need to enable
Ford F-150 Installing factory brake controller? 1704718948563


Ford F-150 Installing factory brake controller? 1704718683528


The IPC
Ford F-150 Installing factory brake controller? 1704719169372


Ford F-150 Installing factory brake controller? 1704719198702


Ford F-150 Installing factory brake controller? 1704718734234


If you have Bliss
Ford F-150 Installing factory brake controller? 1704719233688
 

TexasTruck

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My goodness, this is way more steps than "just enable in the IPC and load as-built from the internet!"

Do I still need a TRM as-built file for a truck that has a TBC and load that some how?
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