Bricked sync 3 apim from firmware update

GB5T-14G374-CB is probably the culprit. This is a known issue. You would need to replace this file with GB5T-14G374-CD.
You can try to recover the APIM by loading in new firmware, no guarantees that will work. You will need a USB OBD adapter like the OBDLink EX.

APIM Firmware Flash Rescue - Ford / Information - CyanLabs Official Community