Flash Code Test

1996 Ford Mustang Cobra, 2D Convertible, StandardSECTION Flash Code Test
NOTE: Use this test to quickly identify a short to ground in the door lock cylinder switches, hood switch, ignition lock anti-theft switch or their associated circuits.
  1. Turn ignition switch to ACCESSORY position check THEFT indicator lamp. If lamp lights steadily for 10 seconds, check ignition lock anti-theft switch and circuit No. 936 (Dark Green/White) wire. If lamp operates normally, go to next step.
  2. Activate power door unlock button 5 times within 10 seconds. Count number of flashes of the anti-theft warning indicator lamp. If there is only one flash, system is normal, go to PINPOINT TEST DIRECTORY TABLEΒ  . If there are 2 flashes displayed, go to next step. If there are 3 flashes displayed, go to step 4). If there are 4 flashes displayed, go to step 5).
  3. Two flashes indicate door lock cylinder switch input shorted. Repair or replace door lock cylinder switches and circuit No. 25 (Dark Green/Purple wire).
  4. Three flashes indicate hood anti-theft switch and/or trunk lock cylinder switch input shorted. Repair or replace hood anti-theft switch and/or trunk lock cylinder switch and circuit No. 23 (Tan/Light Green wire).
  5. Four flashes indicate door lock cylinder switch, hood anti-theft switch and/or trunk lock cylinder switch input shorted. Repair or replace door lock cylinder switch, hood anti-theft switch and/or trunk lock cylinder switch and related circuits.
Fig 1: Anti-Theft Control Module Connector Pin ID (Mustang)
G95F14253Courtesy of FORD MOTOR CO.
RENDER: 1.0x

NO RELATED

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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.