B2103 PATS Antenna Not Connected
What does B2103 mean on a Ford?
B2103 — PATS Antenna Not Connected. This Ford-enhanced code applies to F-150, Mustang, Explorer, Ranger with PATS.
Common causes of B2103
- Unplugged transceiver antenna after column work
- Failed antenna coil
- Open antenna circuit
- Corroded antenna connector
- PATS module fault
How to fix B2103
- Reseat the antenna connector at the ignition cylinder
- Test antenna coil continuity
- Inspect wiring to the PATS module
- Verify key reads return after reseating
- Replace the antenna if the coil is open