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Test AF: Delayed Exit Function Inoperative

WARNING: This page is about a different car, the 1997 Mercury Grand Marquis, 1997 Lincoln Town Car, and 1997 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check Delayed Exit Function Minimum Time Out  - Set autolamp delayed exit switch to minimum setting. Cover dash mounted light sensor amplifier to simulate darkness. Turn ignition switch to RUN position, and then to OFF position. If it takes less than 20 seconds for lights to turn off, go to step 4). If it takes more than 20 seconds for lights to turn off, go to next step.
  2. Check Delayed Exit Function Minimum Setting  - Set autolamp delayed exit switch to minimum setting. Cover dash mounted light sensor amplifier to simulate darkness. Turn ignition switch to RUN position, and then to OFF position. If it takes more than 3 minutes for lights to turn off, go to step 4). If it takes less than 3 minutes for lights to turn off, go to next step.
  3. Check Autolamp Sensor  - Set autolamp delayed exit switch to minimum setting. Cover dash mounted light sensor amplifier to simulate darkness. Turn ignition switch to RUN position, and then to OFF position. If it takes more than 3 minutes for lights to turn off, go to TEST AC. If it takes less than 3 minutes for lights to turn off, go to step 5).
  4. Test Delayed Exit Maximum Time Out  - Set autolamp delayed exit switch to maximum setting with autolamp still on. Turn ignition switch to RUN position, and then to OFF position. If it takes less than 2 minutes and 45 seconds for lights to turn off, go to step 7). If it takes more than 2 minutes and 45 seconds for lights to turn off, go to next step.
  5. Check Delayed Exit Maximum Setting  - Set autolamp delayed exit switch to maximum setting with autolamp on. Turn ignition switch to RUN position, and then to OFF position. If it takes 3 minutes for lights to turn off, system is operating correctly. If it takes more than 3 minutes for lights to turn off, go to next step.
  6. Check Autolamp System Ignition Input  - Set autolamp delayed exit switch to maximum setting with autolamp still on. Turn ignition switch to RUN position, and then to OFF position. If it takes more than 3 minutes for lights to turn off, go to TEST AC. If it takes less than 3 minutes for lights to turn off, go to next step.
  7. Test Autolamp Delay Switch  - Using scan tool, request PID/DATA MONITOR AND RECORD. Request PID status for ALP_IMP. Change position of autolamp delay switch several times. Record PID data after each change. If PID status indicates a value change with each change of switch position, replace LCM. Retest system. If PID status does not indicate a value change with each change of switch position, go to next step.
  8. Test Autolamp Delay Potentiometer  - Disconnect LCM C221/C2026 connector. See Figure . Measure voltage between ground and terminal No. 8 (Dark Blue/Orange wire) at LCM wiring harness connector. Change position of autolamp delay several times. If voltage is not less than one volt, go to next step. If voltage is less than one volt, recheck fuse No. 15 (Town Car) or fuse No. 4 (Crown Victoria and Grand Marquis). Repair open in circuit No. 217 (Dark Blue/Orange wire) between autolamp delay and LCM. Repair or replace switch if damaged. Retest system.
  9. Check Autolamp Switch Input  - Measure voltage between ground and terminal No. 8 (Dark Blue/Orange wire) at LCM wiring harness C221/C2026 connector. Change position of autolamp delay several times. If voltage changes with position of switch, replace LCM and retest system. If voltage does not change, go to next step.
  10. Check Autolamp For Short To Battery Voltage  - Ensure LCM C221/C2026 connector is disconnected. Measure voltage between ground and terminal No. 8 (Dark Blue/Orange wire) at LCM wiring harness connector. Change position of autolamp delay switch several times. If battery voltage is present, repair short to battery in circuit No. 1033 (Red/Yellow wire) between headlight switch delay and LCM. Replace switch if defective. Retest system. If battery voltage is not present, replace LCM and retest system.
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