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Test E: Vent Window Does Not Operate

  1. If vehicle is equipped with moonroof, go to next step. If vehicle is not equipped with moonroof, go to step 3).
  2. Verify moonroof operation. If moonroof operates properly, go to step 4). If moonroof does not operate properly, see POWER MOON ROOFS article.
  3. On vehicles without moonroof, verify vent window operation. If left vent window does not operate, go to step 6). If both vent windows operate, go to step 14). If both vent windows do not operate, go to step 22).
  4. On vehicles with moonroof, verify vent window operation. If left vent window does not operate, go to step 6). If both vent windows operate, go to step 13). If both vent windows do not operate, go to next step.
  5. Turn ignition switch to OFF position. Disconnect left vent window switch connector. Measure resistance between ground and terminal No. 7 (Black wire) at left vent window switch connector. See Fig 1. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Black wire(s). Retest system.
    Fig 1: Identifying Vent Window & Single Switch Terminals
    G97C28193Courtesy of FORD MOTOR CO.
  6. Turn ignition switch to RUN position. Measure voltage between ground and terminal No. 4 (Pink wire) at left vent window switch connector. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Pink wire. Retest system.
  7. Turn ignition switch to OFF position. Measure resistance between ground and terminals No. 1 and 2 (Black wires) at left vent window switch connector. If resistances are less than 5 ohms, go to next step. If resistances are greater than 5 ohms, repair open in Black wire(s). Retest system.
  8. Measure resistance between left vent window switch terminals No. 3 and 4, and also between terminals No. 1 and 6 while pressing left vent window switch in OPEN position. See Fig 1. If resistances are less than 5 ohms, go to next step. If resistance is greater than 5 ohms, replace left vent window switch. Retest system.
  9. Measure resistance between left vent window switch terminals No. 2 and 3, and also between terminals No. 4 and 6 while pressing left vent window switch in CLOSED position. See Fig 1. If resistances are less than 5 ohms, go to next step. If resistances are greater than 5 ohms, replace left vent window switch. Retest system.
  10. Disconnect left vent window motor connector. Measure resistance in Yellow/Light Blue wire between left vent window switch connector and left vent window motor connector. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Yellow/Light Blue wire. Retest system.
  11. Measure resistance between ground and Yellow/Light Blue wire at left vent window switch connector. If resistance is greater than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair Yellow/Light Blue wire. Retest system.
  12. Measure resistance in White/Light Blue wire between left vent window switch connector and left vent window motor connector. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in White/Light Blue wire. Retest system.
  13. Measure resistance between ground and White/Light Blue wire at left vent window switch connector. If resistance is greater than 10 k/ohms, repair White/Light Blue wire. If resistance is less than 10 k/ohms, replace left vent window motor. Retest system.
  14. Turn ignition switch to OFF position. Disconnect right vent window switch connector. Turn ignition switch to RUN position. Measure voltage between ground and Pink wire at right vent window switch connector. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Pink wire. Retest system.
  15. Turn ignition switch to OFF position. Measure resistance between ground and Black wires at right vent window switch connector. If resistances are less than 5 ohms, go to next step. If resistances are greater than 5 ohms, repair open in Black wire(s). Retest system.
  16. Measure resistance between right vent window switch terminals No. 3 and 4, and also between terminals No. 1 and 6 while pressing right vent window switch in OPEN position. If resistances are less than 5 ohms, go to next step. If resistance is greater than 5 ohms, replace right vent window switch. Retest system.
  17. Measure resistance between right vent window switch terminals No. 2 and 3, and also between terminals No. 4 and 6 while pressing right vent window switch in CLOSED position. If resistances are less than 5 ohms, go to next step. If resistances are greater than 5 ohms, replace right vent window switch. Retest system.
  18. Disconnect right vent window motor connector. Measure resistance in Yellow/Red wire between right vent window switch connector and right vent window motor connector. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Yellow/Red wire. Retest system.
  19. Measure resistance between ground and Yellow/Red wire at right vent window switch connector. If resistance is greater than 10 k/ohms, go to next step. If resistance is less than 10 k/ohms, repair Yellow/Red wire. Retest system.
  20. Measure resistance in White/Red wire between right vent window switch connector and right vent window motor connector. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in White/Red wire. Retest system.
  21. Measure resistance between ground and White/Red wire at right vent window switch connector. If resistance is greater than 10 k/ohms, repair White/Red wire. If resistance is less than 10 k/ohms, replace right vent window motor. Retest system.
  22. Check fuse No. 29 (30-amp) in engine compartment fuse block. If fuse is okay, go to next step. If fuse is blown, replace fuse and retest. If fuse blows again, check Red/Black wire between engine compartment fuse block and vent window/moonroof relay. Repair as necessary.
  23. Disconnect vent window/moonroof relay from RPO relay block, located behind passenger side of instrument panel. Turn ignition switch to RUN position. Measure voltage between ground and vent window/moonroof relay socket terminal No. 30. See Figure. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Red/Black wire. Retest system.
  24. Measure voltage between ground and vent window/moonroof relay socket terminal No. 86. See Figure. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, go to TEST D: ONE TOUCH DOWN FEATURE DOES NOT OPERATE . Retest system.
  25. Measure resistance between ground and vent window/moonroof relay socket terminal No. 85. See Figure. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Black wire. Retest system.
  26. Check vent window/moonroof relay. See ACCESSORY DELAY, ONE-TOUCH DOWN & VENT WINDOW/MOONROOF RELAYS  under COMPONENT TESTS. If vent window/moonroof relay is okay, go to next step. If vent window/moonroof relay does not test as specified, replace vent window/moonroof relay. Retest system.
  27. Disconnect left vent window switch connector. Measure resistance between ground and terminal No. 7 (Black wire) at left vent window switch connector. If resistance is less than 5 ohms, repair Pink wire. If resistance is more than 5 ohms, repair Black wire. Retest system.
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