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2005 FORD EXPLORER
4.6L V8•AWD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor496Torque3392Fluid10DTC1041Battery1Maintenance0Recalls3
P1269high severityPowertrain

Immobilizer Code Not Programmed

on 2005 Ford Explorer 4.6L V8 · AWD

What this code means

The PATS immobilizer code has not been programmed into the PCM. This typically occurs when a new PCM is installed without completing the security programming procedure.

Symptoms

  • Engine will not start
  • Security light on or flashing
  • No fuel delivery or spark

Common causes

  • New PCM installed without PATS programming
  • PCM memory corruption
  • Failed key programming procedure

Diagnostic steps

  1. Verify PCM is programmed with PATS codes
  2. Perform key programming procedure
  3. Check for PCM software updates

Repair notes

Program PATS codes into PCM using dealer-level scan tool. Program at least 2 keys.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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