Hello, I am trying to add fordpass into my 2018 mustang gt prem
window sticker states no fordpass connect, its fully optioned minus this and active exhaust
i was successful to add active exhaust to the car.
my sync version was 3.0 and manually upgrade to 3.4
My confusion is with this car although it appears to not have been optioned for sync connect it has everything there from a hardware standpoint. PIFA antenna is present on rear parcel shelf (i have two as i ordered one in anticipation of needing it) TCU is JR3T 14G229 AG, which was with the car when i purchased it approx 2 years ago.
there are a few discrepancies i noticed that may assist you guys in helping me out with coming up with some ideas. one, hotspot feature when opened shows unavailable, top right is no signal with x. when i bought the car i assumed this was because i was not paying for lte, i then opened subscription w/ at&t and no change.
From the tcu there is connection to pifa antenna and other one goes to splitter with two green connectors that go to the LTE? antennas inside the rear bumper. i am not sure if these are in good repair or not. i tried using my second PIFA antenna grounded to the body and no change as well.
Serial number shows up on screen
TCU shows up in authorized state when i datalog it. i tried factory reset manually to get not authorized/waiting for auth and it will not respond to my changes.
I have considered trying to find a different tcu for testing ex: JL3T-14G087-CF as ive read through other forum posts but i seem to get stuck on the fact that my tcu does not seem to respond to any commands.
with it being a used vehicle, is there a way i can verify the VIN from apim module/ tcu on forscan, or is that something i have to goto the dealership for?
Your APIM and TCU coding indicate North America, specifically US. The APIM and TCU coding looks fine, no issues there.
Pull power from the TCU and let it sit for 5 minutes or so then plug it back in and try the factory reset. Look at the signal level in the logging feature in FORScan.
If the TCU does not respond it might be defective, this is not uncommon. Sync Connect APIM & TCU Programming and Activating.pdf (520.8 KB)
Will try replacing tcu. I have referenced that guide before and no matter what I do the tcu does not exit authorized mode. The cell reception does respond when I disconnect antenna and it does drop when I force a module reboot, but other than that it does not seem to function. Perhaps it does not have the capabilities for fordpass as it is the original tcu to the car.
If it’s any different, I have trouble with interpreting what the shark fin antenna does over the puck style which I have. The car tcu the second port going to the two diversity antennas in the rear bumper, and I’m assuming the puck goes to apim for Sirius xm. Never quite figured out the job 2 port application.
Hey guys I got it working with all features! It was the TCU. I ordered one out of a 2018 explorer p/n as referenced above. For anyone else with a 2018 mustang without fordpass that’s how I did it. I opened up the explorer and mustang TCU and I found the Mustang TCU was missing a chip that was present on the explorer tcu. Which is why I didn’t get any cell signal although I had the diversity antennas and everything
Did you take a pic? The chip you were missing is likely the Wi-Fi network controller, which would not have mattered. Replacing the bad TCU is more likely the resolution.
