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Home >> Ford >> 1992 >> Cutaway 7.3 M >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft Systems >> Pinpoint Tests >> Test L - Verify Ignition Key Lock Cylinder Sensor

Test L - Verify Ignition Key Lock Cylinder Sensor

  1. Unlock door using door key to reset system. Disconnect negative battery cable and wait 10 seconds. Reconnect battery cable. If alarm triggers 8 seconds after reconnecting cable, go to step 4). If system does not trigger, go to next step.
  2. Turn ignition off. Disconnect ignition key lock cylinder sensor from wiring harness. If alarm triggers, system is okay, test is complete. If system does not trigger, go to next step.
  3. Check for continuity between pins No. 23 and 25 of control module. If continuity exists, go to next step. If no continuity exists, repair Black or Black/White wire and retest system.
  4. Disconnect control module and measure resistance between pins No. 10 and 26. If resistance is 145-175 ohms, replace control module and retest system. If resistance is less than 145 or more than 175 ohms, repair ignition key lock cylinder sensor and/or Dark Green/White wire.