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Test H: One-Touch Down Feature Inoperative

NOTE: After all repairs, clear DTCs and retest system.
  1. Using NGS tester, observe GEM PID IGN_GEM while turning ignition switch through all positions. If PID IGN_GEM values agree with ignition switch positions, go to next step. If PID IGN_GEM values do not agree with ignition switch positions, check battery saver and accessory delay relays. See ACCESSORY DELAY RELAY  and BATTERY SAVER & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. Check ignition switch. See STEERING COLUMN SWITCHES - EXPLORER & MOUNTAINEER article. Check ignition circuits. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
  2. Using NGS tester, retrieve and record continuous DTCs. Clear continuous DTCs. Perform GEM self-test. If no DTCs, or DTCs B1398 or B1400, are retrieved, go to next step. If DTC B1342 is retrieved, replace GEM. See GENERIC ELECTRONIC MODULE (GEM)  under REMOVAL & INSTALLATION.
  3. Turn ignition switch to RUN position. Using NGS tester, trigger GEM active command ACCY RLY on. Observe GEM PID D_PWRLY while triggering active command ONE TOUCH on and off. If PID D_PWRLY value agrees with command mode, go to step  9 . If PID D_PWRLY value does not agree with command mode and displays OFFO-G, go to next step. If PID D_PWRLY value does not agree with command mode and displays ON-B-, go to step  7 .
  4. Turn ignition off. Test one-touch down relay. See BATTERY SAVER & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. If one-touch down relay is defective, replace relay. If relay is okay, go to next step.
  5. Remove accessory delay relay. Measure resistance between one-touch down relay socket terminal No. 2 and accessory delay relay socket terminal No. 30. See Figure and Figure . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Light Blue/Black wire.
  6. Turn ignition off. Disconnect negative battery terminal. Disconnect GEM 18-pin connector C283. Measure resistance between one-touch down relay socket terminal No. 1 and GEM connector C283 terminal No. 7. See Figure and Figure . If resistance is less than 5 ohms, replace GEM. See GENERIC ELECTRONIC MODULE (GEM)  under REMOVAL & INSTALLATION. If resistance is 5 ohms or more, repair open in Yellow/Red wire.
  7. Turn ignition off. Test one-touch down relay. See BATTERY SAVER & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. If one-touch down relay is defective, replace relay. If relay is okay, go to next step.
  8. Turn ignition off. Disconnect negative battery terminal. Disconnect GEM 18-pin connector C283. Connect negative battery cable. Turn ignition switch to RUN position. Measure voltage between one-touch down relay socket terminal No. 1 and ground. See Figure . If there is any voltage, repair short to power in Yellow/Red wire. If there is no voltage, replace GEM. See GENERIC ELECTRONIC MODULE (GEM)  under REMOVAL & INSTALLATION.
  9. Turn ignition off. Test one-touch down relay. See BATTERY SAVER & ONE-TOUCH DOWN RELAYS  under COMPONENT TESTS. If one-touch down relay is defective, replace relay. If relay is okay, go to next step.
  10. Turn ignition switch to RUN position. Measure voltage between one-touch down relay socket terminal No. 5 and ground. Measure voltage between one-touch down relay socket terminal No. 2 and ground. See Figure . If each voltage is more than 10 volts, go to next step. If either voltage is 10 volts or less, repair appropriate Light Blue/Black wire(s). See WIRING DIAGRAMS  .
  11. Turn ignition off. Disconnect negative battery terminal. Disconnect GEM 18-pin connector C283. Disconnect left front window motor. Measure resistance between left front window motor connector Red wire terminal and GEM connector C283 terminal No. 10 (Gray wire). See Figure . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Red wire or Gray wire.
  12. Measure resistance between left front window motor connector Red wire terminal and GEM connector C283 terminal No. 2 (Orange/White wire). See Figure . If resistance is less than 5 ohms, replace GEM. See GENERIC ELECTRONIC MODULE (GEM)  under REMOVAL & INSTALLATION. If resistance is 5 ohms or more, repair open in Orange/White wire or Red wire.
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