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Test B: Single Front Power Window Inoperative

  1. Turn ignition switch to LOCK position. Disconnect power window master switch connector. Test power window master switch. See appropriate test under POWER WINDOW MASTER SWITCH  . If power window master switch is defective, replace power window master switch and retest system operation. If power window master switch is okay, go to next step.
  2. Test power window motor in question. See POWER WINDOW MOTOR  under COMPONENT TESTS. If power window motor is defective, replace motor and retest system operation. If power window motor is okay, go to next step.
  3. Turn ignition switch to LOCK position. Disconnect power window master switch connector. See POWER WINDOW MASTER SWITCH  under REMOVAL & INSTALLATION. On vehicles without quarter glass power latches, measure resistance between ground and power window master switch connector C509 terminal No. 1 (Black wire). See Figure . On vehicles with quarter glass power latches, measure resistance between ground and power window master switch connector C508 terminal No. 16 (Black wire). See Figure . If resistance is less than 5 ohms and problem is with driver's door window, go to next step. If resistance is less than 5 ohms and problem is with passenger's door window, go to step  5 . If resistance is not less than 5 ohms, repair open in Black wire. Retest system operation.
  4. Turn ignition switch to LOCK position. On vehicles without quarter glass power latches, measure resistance between ground and power window master switch connector C509 terminal No. 7 (Blue/Red wire). On vehicles with quarter glass power latches, measure resistance between ground and power window master switch connector C508 terminal No. 15 (Blue/Red wire). Resistance should be greater than 10 k/ohms. On vehicles without quarter glass power latches, measure resistance of Blue/Red wire between driver door power window master switch connector C509 terminal No. 7 and driver's door power window motor connector. On vehicles with quarter glass power latches, measure resistance of Blue/Red wire between power window master switch connector C508 terminal No. 15 and driver's door power window motor connector. Resistance should be less than 5 ohms. If resistances are as specified, repair open or short to ground in Violet wire between driver's door power window motor and power window master switch. If resistances are not as specified, repair open or short to ground in Blue/Red wire. Retest system operation.
  5. Turn ignition switch to LOCK position. Disconnect passenger's power window switch connector C608. See SINGLE POWER WINDOW SWITCH  under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Measure voltage between ground and passenger's power window switch connector C608 terminal No. 8 (Orange/Black wire). See Fig 1 . If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Orange/Black wire and retest system operation.
    Fig 1: Identifying Passenger's Power Window Switch Connector C608 Terminals
    G99D08564Courtesy of FORD MOTOR CO.
  6. Test passenger's power window switch. See SINGLE POWER WINDOW SWITCH  under COMPONENT TESTS. If switch is defective, replace switch and retest system operation. If switch is okay, go to next step.
  7. Turn ignition switch to LOCK position. On vehicles without quarter glass power latches, measure resistance of Light Green/Black wire between power window master switch connector C509 terminal No. 11 and passenger's power window switch connector C608 terminal No. 6. On vehicles with quarter glass power latches, measure resistance of Light Green/Black wire between power window master switch connector C508 terminal No. 10 and passenger's power window switch connector C608 terminal No. 6. Resistance should be less than 5 ohms. On vehicles without quarter glass power latches, measure resistance between ground and power window master switch connector C509 terminal No. 11 (Light Green/Black wire). On vehicles with quarter glass power latches, measure resistance between ground and power window master switch connector C508 terminal No. 10 (Light Green/Black wire). Resistance should be greater than 10 k/ohms. If resistances are as specified, go to next step. If resistances are not as specified, repair open or short to ground in Light Green/Black wire. Retest system operation.
  8. On vehicles without quarter glass power latches, measure resistance of Orange wire power window master switch connector C509 terminal No. 12 and passenger's power window switch connector C608 terminal No. 3. On vehicles with quarter glass power latches, measure resistance of Orange wire power window master switch connector C508 terminal No. 9 and passenger's power window switch connector C608 terminal No. 3. Resistance should be less than 5 ohms. On vehicles without quarter glass power latches, measure resistance between ground and power window master switch connector C509 terminal No. 12 (Orange wire). On vehicles with quarter glass power latches, measure resistance between ground and power window master switch connector C508 terminal No. 9 (Orange wire). Resistance should be greater than 10 k/ohms. If resistances are as specified, go to next step. If resistances are not as specified, repair open or short to ground in Orange wire. Retest system operation.
  9. Disconnect passenger's power window motor connector. Measure resistance of Blue/Yellow wire between passenger's power window switch connector C608 terminal No. 7 and passenger's power window motor connector. Resistance should be less than 5 ohms. Measure resistance between ground and passenger's power window switch connector C608 terminal No. 7 (Blue/Yellow wire). Resistance should be greater than 10 k/ohms. If resistances are as specified, go to next step. If resistances are not as specified, repair open or short to ground in Blue/Yellow wire. Retest system operation.
  10. Measure resistance of Blue/Orange wire between passenger's power window switch connector C608 terminal No. 2 and passenger's power window motor connector. Resistance should be less than 5 ohms. Measure resistance between ground and passenger's power window switch connector C608 terminal No. 2 (Blue/Orange wire). Resistance should be greater than 10 k/ohms. If resistances are as specified, replace passenger's power window switch and retest system operation. If resistances are not as specified, repair open or short to ground in Blue/Orange wire. Retest system operation.
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