LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2001 >> Mustang Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window System >> System Tests >> Test F: Passenger's Front Power Window Inoperative
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test F: Passenger's Front Power Window Inoperative

  1. Turn ignition switch to RUN position. Operate passenger's window from master window/door lock switch. If passenger's window does not operate from master window/door lock switch, go to next step. If passenger's window operates from master window/door lock switch, go to step  15 .
  2. Turn ignition switch to LOCK position. Disconnect passenger's window motor harness connector C604. Measure resistance between ground and passenger's window motor harness connector C604 Red/Yellow wire terminal. If resistance is more than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step  8 .
  3. Disconnect passenger's window/door lock switch harness connector C602. Measure resistance between ground and passenger's window/door lock switch harness connector C602 terminal No. 9 (Tan/Light Blue wire). See Fig 1 . If resistance is more than 5 ohms, go to next step for convertible or step  5 for coupe. If resistance is 5 ohms or less, go to step  7 .
  4. Disconnect master window/door lock switch harness connector C505. Measure resistance in Tan/Light Blue wire between master window/door lock switch harness connector C505 terminal No. 9 and passenger's window/door lock switch harness connector C602 terminal No. 9. See Figure and Fig 1 . If resistance is 5 ohms or less, go to step  6 . If resistance is more than 5 ohms, repair open in Tan/Light Blue wire between master window/door lock switch and passenger's window/door lock switch. See WIRING DIAGRAMS  .
  5. Disconnect master window/door lock switch harness connector C502. Measure resistance in Tan/Light Blue wire between master window/door lock switch harness connector C502 terminal No. 8 and passenger's window/door lock switch harness connector C602 terminal No. 9. See Figure and Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Tan/Light Blue wire between master window/door lock switch and passenger's window/door lock switch. See WIRING DIAGRAMS  .
  6. On convertible models, measure resistance between ground and master window/door lock switch harness connector C505 terminal No. 14 (Black wire). On coupe models, measure resistance between ground and master window/door lock switch harness connector C502 terminal No. 9 (Black wire). On all models, if resistance is 5 ohms or less, replace master window/door lock switch. See REMOVAL & INSTALLATION  . If resistance is more than 5 ohms, repair open in Black wire between master window/door lock switch and ground. Ground point is located in left rear of vehicle. See WIRING DIAGRAMS  .
  7. Measure resistance in Red/Yellow wire between passenger's window motor harness connector C604 and passenger's window/door lock switch harness connector C602 terminal No. 6. If resistance is 5 ohms or less, replace passenger's window/door lock switch. See REMOVAL & INSTALLATION  . If resistance is more than 5 ohms, repair open in Red/Yellow wire between passenger's window motor and passenger's window/door lock switch. See WIRING DIAGRAMS  .
  8. Measure resistance between ground and passenger's window motor harness connector C604 Yellow/Red wire terminal. If resistance is more than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step  14 .
  9. Disconnect passenger's window/door lock switch harness connector C602. Measure resistance between ground and passenger's window/door lock switch harness connector C602 terminal No. 7 (White/Yellow wire). See Fig 1 . If resistance is more than 5 ohms, go to next step for convertible or step  11 for coupe. If resistance is 5 ohms or less, go to step  13 .
  10. Disconnect master window/door lock switch harness connector C505. Measure resistance in White/Yellow wire between master window/door lock switch harness connector C505 terminal No. 7 and passenger's window/door lock switch harness connector C602 terminal No. 7. See Figure and Fig 1 . If resistance is 5 ohms or less, go to step  12 . If resistance is more than 5 ohms, repair open in White/Yellow wire between passenger's window/door lock switch and master window/door lock switch. See WIRING DIAGRAMS  .
  11. Disconnect master window/door lock switch harness connector C502. Measure resistance in White/Yellow wire between master window/door lock switch harness connector C502 terminal No. 15 and passenger's window/door lock switch harness connector C602 terminal No. 7. See Figure and Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in White/Yellow wire between passenger's window/door lock switch and master window/door lock switch. See WIRING DIAGRAMS  .
  12. On convertible models, measure resistance between ground and master window/door lock switch harness connector C505 terminal No. 14 (Black wire). On coupe models, measure resistance between ground and master window/door lock switch harness connector C502 terminal No. 14 (Black wire). On all models, if resistance is 5 ohms or less, replace master window/door lock switch. See REMOVAL & INSTALLATION  . If resistance is more than 5 ohms, repair open in Black wire between master window/door lock switch and ground. Ground point is located in left rear of vehicle. See WIRING DIAGRAMS  .
  13. Measure resistance in Yellow/Red wire between passenger's window motor harness connector C604 and passenger's window/door lock switch harness connector C602 terminal No. 10. If resistance is 5 ohms or less, replace passenger's window/door lock switch. See REMOVAL & INSTALLATION  . If resistance is more than 5 ohms, repair open in Yellow/Red wire between passenger's window motor and passenger's window/door lock switch. See WIRING DIAGRAMS  .
  14. Test master window/door lock switch. See MASTER WINDOW/DOOR LOCK SWITCH  under COMPONENT TESTS. If switch is okay, replace passenger's window motor. See REMOVAL & INSTALLATION  . If switch is defective, replace master window/door lock switch.
  15. Turn ignition switch to LOCK position. Disconnect passenger's window/door lock switch harness connector C602. Turn ignition switch to RUN position. Measure voltage between ground and passenger's window/door lock switch harness connector C602 terminal No. 8 (Pink wire). See Fig 1 . If battery voltage exists, replace passenger's window/door lock switch. See REMOVAL & INSTALLATION  . If battery voltage does exist, go to next step for convertible or step  17 for coupe.
  16. Turn ignition switch to LOCK position. Disconnect master window/door lock switch harness connector C505. Measure resistance in Pink wire between master window/door lock switch harness connector C505 terminal No. 16 and passenger's window/door lock switch harness connector C602 terminal No. 8. See Figure and Fig 1 . If resistance is 5 ohms or less, replace master window/door lock switch. See REMOVAL & INSTALLATION  . If resistance is more than 5 ohms, repair open in Pink wire between master window/door lock switch and passenger's window/door lock switch. See WIRING DIAGRAMS  .
  17. Repair open in Pink wire between passenger's window/door lock switch and circuit breaker No. 43 in Central Junction Box (CJB). CJB is located behind left side of instrument panel, left of steering column. See WIRING DIAGRAMS  .
Fig 1: Identifying Passenger's Window/Door Lock Switch Harness Connector C602 Terminals
G96D01336Courtesy of FORD MOTOR CO.
scientia non olet · About LEMON Manuals