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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry Systems - Remote >> Testing (Pinpoint Tests) >> Pinpoint Test B, Automatic Locking System >> Test Procedures
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Test Procedures

  1. Using an ohmmeter, check continuity between pin No. 2 of Brown connector and ground. If continuity exists, go to step 2). If not, repair Black wire to keyless entry module. See Figure .
  2. Turn ignition off. Disconnect Brown connector from keyless entry module. With driver's seat unoccupied, check continuity between pins No. 2 and 9 of Brown connector. If no continuity exists, go to step 4). If continuity exists, go to next step.
  3. Disconnect driver's seat switch. Check for short between pin No. 9 of Brown connector and ground. If short is found, repair White wire and repeat QUICK TEST  . If no short is found, replace driver's seat switch and repeat QUICK TEST  .
  4. Have an assistant sit in driver's seat. Check continuity between pins No. 2 and 9 of Brown connector. If continuity exists, go to step 6). If not, go to next step.
  5. With driver's seat occupied, check continuity between pin No. 9 of Brown connector and driver's seat switch connector White wire. If continuity exists, replace seat switch and repeat QUICK TEST  . If no continuity exists, repair open in White wire to seat switch to ground or switch to keyless entry module. and repeat QUICK TEST  .
  6. Using a voltmeter, check voltage between pins No. 2 and 13 of Brown connector. If reading is 10 volts or more, go to next step. If reading is less than 10 volts, check for open or shorts in Light Green/Yellow wire. Repeat QUICK TEST  .
  7. Check that courtesy lights come on when each courtesy light switch is operated. If lights come on, go to step 8). If not, repair switch or wiring and repeat QUICK TEST  .
  8. Disconnect Gray connector from module. With all doors closed, check voltage between pin No. 12 of Gray connector and ground. If reading is zero volts, go to step 9). If reading is more than zero volts, repair short to battery voltage or replace door switch that is shorted to battery voltage. Repeat QUICK TEST  .
  9. Close all doors. Open any door and check voltage at pin No. 12 of Gray connector. Repeat procedure for every other door. If all readings are 10 volts or more, go to step 10). If not, repair open or short in Black/Ligth Blue wire. Repeat QUICK TEST  .
  10. Turn ignition off. Check voltage between pin No. 8 of Brown connector and ground. If reading is zero volts, go to step 11). If reading is more than zero volts, repair or replace ignition switch. Repeat QUICK TEST  .
  11. Turn ignition on. Check voltage between pin No. 8 of Brown connector and ground. If reading is 10 volts or more, go to step 13). If reading is less than 10 volts, go to step 12).
  12. Turn ignition off. Check for short between pin No. 8 of Brown connector and ground. Check for continuity between pin No. 8 of Brown connector and Pink wire of ignition switch. If continuity exists and no short to ground, go to step 13). If there is a short to ground or an open circuit, repair Pink wire or check ignition switch. Repeat QUICK TEST  .
  13. Turn ignition on. With transmission in REVERSE, check voltage between pin No. 10 of Brown connector and ground. Check voltage with transmission in all other positions. If reading is 10 volts in REVERSE and zero volts in any other position, replace keyless entry module. If reading is less than 10 volts in reverse or more than zero volts in all other positions, go to step 14).
  14. Test operation of back-up light switch by placing transmission in REVERSE. Make sure back-up lights come on. If switch is okay, check for open or short in Black/Pink wire. If switch is defective, replace switch and repeat QUICK TEST  .
  15. Check resistance between pin No. 14 of Brown connector and ground. Lift outside door handle to open door latch, observe ohmmeter and then close latch with screwdriver. If resistance is greater than 10,000 ohms with latch closed and less than 10 ohms with latch open, replace keyless entry module and repeat QUICK TEST  .
  16. If resistance is less than 10,000 ohms with latch closed, check and/or service door ajar switch circuit. If reading is greater than 10 ohms with latch open, repeat QUICK TEST  .
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