2007 Ford Expedition RWDFACTORY OEM SERVICE PROCEDURE

Anti-Theft Systems DTCS

INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Perform Test
B1600 PATS Ignition Key Transponder Signal is Not Received No PATS key has been read by the instrument cluster. Go to Pinpoint Test B .
B1601 PATS Received Incorrect Key-Code From Ignition Key Transponder There is an unprogrammed PATS key. Go to Pinpoint Test C .
B1602 PATS Received Invalid Format of Key-Code From Ignition Key Transponder Only a partial PATS key was read. Go to Pinpoint Test D .
B1681 PATS Transceiver Module Signal is Not Received The instrument cluster did not receive the PATS transceiver signal. Go to Pinpoint Test E .
B2103 Antenna Not Connected There has been a PATS transceiver antenna failure. Go to Pinpoint Test A .
B2141 NVM Configuration Failure There is no PCM ID stored in the instrument cluster. CARRY OUT a parameter reset of the instrument cluster and CYCLE the ignition 3-5 times, making an attempt to start the vehicle each key cycle.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.