Screen size and APIM firmware or software

Ford SYNC 3 Support
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Even though they don’t pop MIL’s, you will find that those features with the DTC’s don’t work, like the floor temperature sensing, A/C heat sensing on the windshield, satellite radio probably. The TCU can also not sense the overall vehicle condition as it cannot talk to the BCM, or APIM. This also means that you will not be notified via FordPass if your alarm is triggered, and that won’t work either, along with the hotspot, because the TCU will not power up.

2015 thru 2019 8" displays all work on any APIM (some minor exceptions). To do this properly, you need 2 parts, the APIM 8" screen and 2020+ 8" FCIM, along with some FORScan programming. On further research the 5U5T-14G371-LNC APIM is NON-NAV, but will work with an 8" screen. It just needs to be programmed. And all the other stuff will also still work…

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How do I program my original apim to 8 inch?

Do I just run the cyan labs USB on it?

I don’t have the firmware thing on my forscan.

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Basic FORScan, non-licensed version.
Download FORScan
FORScan for Windows v2.3.41 - free

Try this,
Based on your factory asbuilt, to set the APIM for 8" screen:
Open the APIM as built configuration page,
Change
7D0-03-01 0000 0101 00DD
to
7D0-03-01 0000 0601 00xx
(don’t worry about the 2 last bits, FORScan will calculate those for you…just say yes to the message.)

You may need to force reset (in FORScan tools menu) and power cycle the APIM after the change above.

Here is the APIM database in excel.
APIM As Built Database.xlsx (64.1 KB)
And your Factory as built file. Place this file in a safe place, it has all of your original settings.
1FA6P8CF6M5121778.ab (40.6 KB)

The CyanLabs Syn3 Updater only loads software and maps, it will not change the asbuilt configurations. Use FORScan for configurations.

32

That didn’t work to change my 4" apim into 8".

33

I applied the 8" APIM software for my 4" APIM and it worked, this was not a firmware change. Sounds like you are in the same boat as I was, which was the splash screen worked, but then it defaulted back to the smaller screen afterwards. I used the USB upgrade tool from here to change the software package (the 8" code is twice the size of the 4" code, so make sure you pull the right version). I used the same version number that was driving the 4" screen. I didn’t make any FORSCAN changes at this point in the change, as the FORSCAN settings for using Sync with the 4" screen don’t seem to match the known configurations. Moving to the 8" code did make the TCU stop functioning fully (I could still use the hotspot, but remote functions stopped working). After I did the upgrade and re-connected to my wifi at home, I ran the “check for updates” from the vehicle and there was an update package pulled; I’m not quite sure what it was, but It’s happened both times I’ve used the USB upgrade tool to make changes to the software. After I finally figured out what needs to be changed in the TCU, full remote functions returned.

34

Can you expand on the TCU function reprogram?

35

In FORSCAN had to make these changes in the TCU:

754-18-01 : 0204 to 0304

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I have tried extensively to get a new TCU working on a old APIM, i couldn’t get it working, everything i tried including what is mentioned above did not work, it may not be impossible but it’s also not necessarily simple

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37

GettoSD what options did you use to create the USB when I try to do the update it just says updating and never updates.

38

Are you getting that issue creating the USB? Or when you put it in your vehicle? For the Syn3 Updater I used:

Version 3.4.20136
US Region (since I’m in the US)
Non Nav APIM.

All others kept as default. Then placed in the truck, started up, and waited. Took about 30 mins to update, I believe.

39

2021 Mustang GT Base - It worked thanks!

So a detail of what I did. Put the USB in and the 4" display on the 8" inch screen said updating. Waited for like 10 min then pulled the USB out while it wasn’t being used thinking it wasn’t working. Rebooted the car and now the 8" inch screen was black. Used Ford’s Reset procedure to reboot the APIM and it booted into the 8" display with everything working.

What I think is happening is when you force the software update with the USB it’s checking your hardware configuration and loading the right files.

Files I have previously downloaded in the Cyanlabs tool were to update the 2016 APIM that I was using but TCU wasn’t working. I simply selected the most current version, non-nav, MY20 Auto Detect, and created the USB. Then used that on my original 2021 4" APIM while fully installed with the 8" screen.

ASBuilt I changed: (Found from the internet), most can be changed without asbuilt in the non-asbuilt configuration in FORSCAN.

TCU: 754-18-01: 0204 to 0304
APIM: 7D0-03-01: 0000 0601 00XX
BCM: 726-29-02: xxxx xxx0 xxxx
IPC: 720-06-01: 786F 0664 1897 (MANUAL) / 6C7F 8000 18B1 (AUTOMATIC)

ABS:
(USA) Base GT : 760-02-02: XXXX 3XXX
(USA) Performance Pack GT : 760-02-02: XXXX 7XXX
(USA) V6/EB 760-02-02: 0200 - 117E

The 2015 FCIM is still throwing 3 DTC with no MIL. As stated above this is because of its older firmware. Not sure if I can update the firmware but everything is working anyways even with the codes.

FCIM - B11E5 - Left HVAC Damper Position Sensor
FCIM - B1A63 - Right Solar Sensor
FCIM - B1A64 - Left Solar Sensor

I used a 2017 8" Touchscreen.

What’s working: Apple Car Play, Android Auto, 8" Touch Screen, Ford Pass, Hotspot, Wifi

Thanks go out to F150Chief & goettsd for your insights and help!

40

If the TCU was a K*** part number, it uses HS4 and you need to downgrade the firmware to J*** version to use HS3. The hotspot will not work with older APIM’s.

41

Thanks for the assist, I assumed the software was already at the 8" version. The change needed to be made also for the right theme.

42

Updated above post. All is working now! Thanks everyone for your help. Now I have to sell my 2016 NAV APIM SYNC 3.4, 2015 SYNC 2 APIM / Touchscreen, 2015 RCU w/ CD Player, 2015 Wire Harness.

43

The 2021 APIM was set up for the 2021 4" display as far as the screen drivers. You needed to reset the APIM and power cycle, then it works with the older displays. To go back to a 2020+ screen, you would need to do the procedure over again to use the newer drivers. The drivers are different for the older vs newer screens.

Did you swap the 2021 ACM back in or stay with the 2015 with CD?

Happy it’s all working now. Enjoy…

44

Im using my original 2021 APIM w/ 2015 FCIM 8" Bezel and original 2021 NO-CD ACM.

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this is probably why, i didn’t care enough to diagnose further, @Louage did mention this may fix it though

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For the FCIM DTC’s, try these settings for the FCIM thru FORScan.

FCIM - B11E5 - Left HVAC Damper Position Sensor
This will be one of these:

7A7-01-03 *xxx xxxx xxxx Front Left-Hand Side Discharge Sensor - Panel (FLDSP) & Front Left-Hand Side Discharge Sensor - Floor (FLDSF)
0=FLDSP not present & FLDSF not present
2=FLDSP not present & FLDSF present
4=FLDSP present & FLDSF not present
6=FLDSP present & FLDSF present

I have not found settings for the Solar Sensors.
FCIM - B1A63 - Right Solar Sensor
FCIM - B1A64 - Left Solar Sensor

FCIM As Built Database.xlsx (67.4 KB)

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Didn’t fix it. I think is just a firmware compatibility issue with older FCIM modules. They must not use the solar sensors in the newer models so it is not there and causes the FCIM to report these 3 errors. I looked again and its talking about the right-hand HVAC damper sensor, not the left. I used your breakdown to try and clear that one and that one won’t clear either. I didn’t try every code combination possible in the list for the HVAC Damper Sensor but ultimately it’s not hurting anything. I have been trying to find a Bezel from current-gen models but there are 4 types not for the mustang. Most places won’t even sell them due to backorder and I can’t find specific information on what model I need for my car not having heated and cooled seats and a single-mode HVAC system. Either way $500 bezel is a little expensive to correct some harmless DTCs that are no0t throwing a MIL light.

FR3Z-18842-(S,T,U,V) are the found part numbers on the ford datasheet but they have no information about features other than interface 5, 3, and some other lingo I’m not sure about what it says. Is there any way that yall know of to update the firmware on it?

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