2016 Lincoln MKX 3g to 4g upgrade

Ford SYNC 3 Support CyanLabs Update Support
, , , , ,
1

Hello, I have a 2016 MKX that I am currently tearing the engine apart due to the dreaded internal water pump failure. I thought it would also be a good time to upgrade the 3g modem to a 4g modem to get the lincoln way remote start/lock features back that I haven’t been able to use since 3g was discontinued. I have previously watched several videos and read forum posts about doing this via FORScan. From what I recall, JA1T-14G229-AJ is the reccomended part number, but seems availability is still an issue. I was wondering if TCMs from a nautilus (or other vehicle) would also work, and if so, would the process be much more involved? Would a TCM such as LA1T-14G229-AL work? Or is it best to go with the reccomended part number?

SYNC Region: NA

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: OEM

Old SYNC Version: 3.0

New SYNC Version: 3.3

Do you have a error message, if so what is it?
Sync version not accurate, I don’t remember what version I updated too offhand and vehicle is not nearby.

Update Method: CyanLabs Syn3 Updater

Syn3 Updater Version: not sure

Syn3 Updater Documentation Read: yes

Syn3 Updater Log File

not sure
1 Like
2

There are a few topics here on this…
Search results for ‘mkx tcu 4g’ - CyanLabs Official Community

3G to 4G TCU upgrade 2016 MKZ 2.0 w sync 3.4 - Ford / SYNC 3 Support - CyanLabs Official Community

Most any NA J-series TCU will work for this. K or L-series will NOT work. JL3T TCU’s are available and will work directly.

APIM & TCU Files and Programming 20220108.pdf (511.8 KB)

3

Are all J-series TCUs NA? Sorry for the stupid question, just want to make sure I don’t get one that won’t be compatible. I see one for sale: JL3T-14G229-AG, this should work?

4

Yes, it will as long as the label indicates “TCU-B2”

5

Awesome. Part is ordered. Now just need to get the antenna. I’ve seen both bingfu and PICA mentioned, is one better to use than the other? I’ve also read that the old antenna can’t be used but another post saying both the old and new antenna need to be connected? I’ll hopefully start working on this in a few weeks once I have the engine back together.