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Test B: All Windows Inoperative

WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: After repair, clear DTCs and retest system.
  1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). DLC is located below driver's side instrument panel, right of steering column. Using NGS tester, observe Generic Electronic Module (GEM) PID IGN_GEM while turning ignition switch through all positions. Depress clutch pedal when turning ignition switch to START position (M/T). If PID values agree with ignition switch positions, go to next step. If PID values do not agree with ignition switch positions, repair appropriate ignition switch circuit. See POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
  2. Using NGS tester, perform GEM self-test. If there are no DTCs, or DTC B1313 or B1315 is present, go to next step. If DTC B1302 or B1304 is present, go to step  9. If DTC B1342 is present, replace GEM. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION.
  3. Turn ignition switch to RUN position. Observe GEM PID BATSAV while triggering GEM active command BATTERY SAVER to ON and OFF. If PID value does not agree with command mode and displays OFFO-G, go to next step. If PID value does not agree with command mode and displays ON-B-, go to step  7. If PID value agrees with command mode, go to step  9.
  4. Turn ignition switch to LOCK position. Remove battery saver relay. Battery saver relay is located in central junction box. Measure voltage between ground and battery saver relay socket terminal No. 1. See Fig 1. If battery voltage exists, go to next step. If battery voltage does not exist, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION.
  5. Check battery saver relay. See BATTERY SAVER RELAY  under COMPONENT TESTS. If relay is okay, go to next step. If relay is defective, replace defective relay.
  6. Disconnect GEM from central junction box 18-pin internal connector C201d. Measure resistance between battery saver relay socket terminal No. 2 and central junction box internal connector C201d terminal No. 1 (central junction box side). See Figure and Fig 1 . If resistance is more than 5 ohms, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If resistance is 5 ohms or less, replace GEM. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION.
  7. Turn ignition switch to LOCK position. Check battery saver relay. See BATTERY SAVER RELAY  under COMPONENT TESTS. If relay is okay, go to next step. If relay is defective, replace defective relay.
  8. Remove GEM from central junction box internal connector C201d. Turn ignition switch to RUN position. Measure voltage between ground and battery saver relay socket terminal No. 2. See Fig 1. If battery voltage exists, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If battery voltage does not exist, replace GEM. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION.
  9. Using NGS tester, observe GEM PID ACCDLY while triggering GEM active command ACCESSORYDELAY to ON and OFF. If PID value agrees with command mode, go to step  15. If PID value does not agree with command mode and displays OFFO-G, go to next step. If PID value does not agree with command mode and displays ON-B-, go to step  13.
  10. Turn ignition switch to LOCK position. Remove accessory delay relay. Turn ignition switch to RUN position. Measure voltage between ground and accessory delay relay socket terminal No. 86. See Fig 2. If battery voltage exists, go to next step. If battery voltage does not exist, go to step  22.
  11. Turn ignition switch to LOCK position. Check accessory delay relay. See ACCESSORY DELAY & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. If relay is okay, go to next step. If relay is defective, replace defective relay.
  12. Remove GEM from central junction box 18-pin internal connector C201d. Measure internal resistance between central junction box internal connector C201d terminal No. 11 (central junction box side) and accessory delay relay socket terminal No. 85. See Figure and Fig 2 . If resistance is more than 5 ohms, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If resistance is 5 ohms or less, replace GEM. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION.
  13. Turn ignition switch to LOCK position. Check accessory delay relay. See ACCESSORY DELAY & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. If relay is okay, go to next step. If relay is defective, replace defective relay.
  14. Disconnect GEM from central junction box 18-pin internal connector C201d. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Measure voltage between ground and accessory delay relay socket terminal No. 85. See Fig 2. If battery voltage exists, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If battery voltage does not exist, replace GEM. See GENERIC ELECTRONIC MODULE  under REMOVAL & INSTALLATION.
  15. Turn ignition switch to LOCK position. Remove one-touch down relay. Turn ignition switch to RUN position. Using NGS tester, trigger GEM active command DELAYED ACCESSORY to ON. Measure voltage between ground and one-touch down relay socket terminal No. 85. See Fig 2. If battery voltage does not exist, go to next step. If battery voltage exists, connect one-touch down relay and go to step  19.
  16. Turn ignition switch to LOCK position. Remove accessory delay relay. Measure voltage between accessory delay relay socket terminal No. 30 and ground. See Fig 2. If battery voltage does not exist, go to next step. If battery voltage exists, go to step  18.
  17. Turn ignition switch to LOCK position. Disconnect central junction box 34-pin harness connector C270a. Measure voltage between ground and central junction box harness connector C270a terminal No. 25 (Red/Light Blue wire). See Figure. If battery voltage exists, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If battery voltage does not exist, repair open in Red/Light Blue wire between battery junction box and central junction box. See POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
  18. Check accessory delay relay. See ACCESSORY DELAY & ONE-TOUCH DOWN RELAY  under COMPONENT TESTS. If relay is okay, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If relay is defective, replace defective relay.
  19. Turn ignition switch to LOCK position. Disconnect driver's side window switch harness connector C509. Turn ignition switch to RUN position. Using NGS tester, trigger GEM active command ACCESSORYDELAY to ON. Measure voltage between ground and driver's side window switch harness connector C504b (supercrew) or C535 (except supercrew) terminal No. 4, Light Blue/Black wire. If battery voltage does not exist, go to next step. If battery voltage exists, go to step  21.
  20. Turn ignition switch to LOCK position. Disconnect central junction box 34-pin harness connector C270a.. Measure resistance in Light Blue/Black wire terminal between driver's side window switch harness connector C504b (supercrew) or C535 (except supercrew) terminal No. 4 and central junction box harness connector C270a terminal No. 10. See Figure and Figure . If resistance is 5 ohms or less, replace central junction box. See CENTRAL JUNCTION BOX  under REMOVAL & INSTALLATION. If resistance is more than 5 ohms, repair open in Light Blue/Black wire between driver's side window switch and central junction box. See WIRING DIAGRAMS .
  21. Turn ignition switch to LOCK position. Disconnect driver's side window switch harness connector C504b (supercrew) or C535 (except supercrew). Measure resistance between ground and driver's side window switch harness connector Black wires terminals. See Figure or Figure . If resistance is 5 ohms or less, replace driver's side window switch. If resistance is more than 5 ohms, repair open in appropriate Black wire between driver's side window switch and ground. Ground is located behind right kick panel. See WIRING DIAGRAMS .
  22. Turn ignition switch to LOCK position. Check battery saver relay. See BATTERY SAVER RELAY  under COMPONENT TESTS. If relay is okay, replace central junction box. If relay is defective, replace defective relay.
Fig 1: Identifying Battery Saver Relay Socket Terminals
G97J28521Courtesy of FORD MOTOR CO.
Fig 2: Identifying Accessory Delay & One-Touch Down Relay Socket Terminals
G97D28061Courtesy of FORD MOTOR CO.
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