Ford Codes List

Ford-enhanced trouble code lookup
for Ford, Lincoln and Mercury.

Repair Order

655 Ford-enhanced codes on file

Code
B2103

PATS Antenna Not Connected

Category
Body
Severity
Body Warning Light
Applies to
F-150, Mustang, Explorer, Ranger with PATS
Related
No single generic twin. See OBD Codes List

Findings, check these first

  • Unplugged transceiver antenna after column work
  • Failed antenna coil
  • Open antenna circuit
  • Corroded antenna connector
  • PATS module fault

Standard procedure

  1. Reseat the antenna connector at the ignition cylinder
  2. Test antenna coil continuity
  3. Inspect wiring to the PATS module
  4. Verify key reads return after reseating
  5. Replace the antenna if the coil is open

Code lookup

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Sources and review

Review: checked against the recorded source material.

Last updated 2026-09-25.

Report a correction for B2103. Include your vehicle, the issue and a source if you have one.

This fault is part of the Ford PATS and no-start codes guide. It covers the family and the order to check it.

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