I have read the excellent 2017 MKZ hybrid 4g TCU upgrade discussion (2017 MKZ hybrid 4g TCU upgrade) and thanks to @chadmees and @F150Chief for all the work and documentation of the process.
I am going to attempt the same on my 2017 Ford Focus BEV. I have obtained a 2017-2019 Ford Escape Telematic Communication Control Module HJ5T-14G087-UF on eBay and will use the Bingfu 4G antennae as did Chad. Before I start, I have a few questions I was hoping to get answered:
Would it be wise to us the Syn3 Updater before starting the process or wait until after the 4G upgrade?
should this be the first step performed in starting the upgrade process? “set the first line of the asbuilt to 754-01-01 B100 xx to force an unprovisioned factory mode”
are there any issues to be aware of in attaching a battery charger to the 12v battery in the Focus BEV?
Has anyone else already tried this on the Focus BEV?
Thanks again Chad and F150Chief and in advance to anyone else who responds!
Probably best to do this before so you can set the required asbuilt changes to the APIM.
Once you have the S/N of the TCU showing on the APIM screen, and you have added your vehicle to your FordPass account, then perform the asbuilt change.
There should not be, but read your owners manual. It will tell you if and how it should be connected.
Thank you for your response!
I’ll do the Sync upgrade soon.
I had thought adding the vehicle to FordPass was the last step but I’ll follow your instruction.
Your help is appreciated!
Aloha @F150Chief,
I’ve installed the new TCU and antenna, but can’t seem to get it working.
I’ve attached some screenshots.
The TCU shows a current level of HJ5T-14G087-UM which is the same level as shown in the FORD bulletin for the upgrade. Shouldn’t that be sufficient to get it up and running?
My screen is different as it doesn’t show the module with the upgrade options like the Chad Mees video, but is that just a ForScan difference? I have an extended trial license.
Forscan is not reading any PID data, which I guess means it’s not seeing any TCU activity?
Wow, thanks fr the quick response. Have made the change and written it, but also noticed this"Executing service procedure.." message in ForScan and I actually cannot chand the PID read to the TCU probably because this is happening.
OK. Guess I celebrated too soon.
I can see location and battery stats (%charged and miles), but lock, unlock, and start climate all fail. All were functions that worked when 3G was operational.
Suggestions appreciated (again!).
Screenshot attached.
Those changes seem to work, thanks!
Can now lock/unlock and start climate control (as soon as I figure out exactly what it’s doing),
Again, your assistance and knowledge is much appreciated!
Mahalo!
For the climate control on remote start, it works like this…
Set to automatic, the vehicle systems (HVAC) determine the outside temp, humidity, etc., and start the climate control to compensate. This is mostly adequate, but a point to remember is that on remote start the climate control will be at a reduced setting, meaning that it won’t run the blowers full speed not heat/cool at max. The reason for this is to safeguard the vehicle, as running full heat on a frozen windshield is a quick way to the glass shop.
When set to last used setting, the climate control will revert to the setting when the vehicle was last run. This may not be optimal, but it is what it is.
I have always used the automatic mode and have had no issues in any weather.
