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Test V: Door Ajar Indicator Does Not Operate Properly

  1. Turn ignition switch to LOCK position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, select GEM PID IGN_GEM from PID/DATA monitor menu. Monitor PID while turning ignition key to each position. On models with manual transmission, ensure clutch is depressed while turning ignition key to start. On all models, if PID values agree with key positions, go to next step. If PID values do not agree with key positions, repair power distribution circuit. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
  2. Using NGS tester, perform GEM module self-test. If no DTCs exist, go to step  4 . If DTC B1325 exists, go to step  9 . If DTC B1323 exists, go to next step. If DTC B1342 exists, replace GEM. GEM is located behind center of instrument panel. Clear DTCs and recheck system operation. If DTC B1322, B1330, B1334, B1338 or B1574 exist, check GEM/CTM PID values for suspect door ajar switch(es). See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table for DTC description. For a complete listing of GEM/CTM PIDs, see MODULE COMMUNICATIONS NETWORK - EXPLORER & MOUNTAINEER article. Replace door ajar switch as necessary and recheck system operation. If PID values for door ajar switches are okay, check for short to ground in related door ajar switch circuits. See ILLUMINATION/INTERIOR LIGHTS article. If switches and circuits are okay, replace GEM/CTM. Recheck system operation.
    DIAGNOSTIC TROUBLE CODE IDENTIFICATION

    DTC Description
    B1322 Driver's Door Ajar Switch
    B1330 Passenger's Door Ajar Switch
    B1334 Liftgate Ajar Switch
    B1338 Right Rear Door Ajar Switch
    B1574 Left Rear Door Ajar Switch
  3. Turn ignition switch to RUN position. Using NGS tester, select GEM PID DRAJR_L from PID/DATA monitor menu. Monitor PID value and toggle active command AJAR LAMP to ON then OFF. If PID value indicates ON when active command is ON and OFF when active command is OFF, replace GEM. GEM is located behind center of instrument panel. Clear DTCs and recheck system operation. If PID value indicates OFFO-G, go to next step. If PID value indicates OFF-B, go to step  9 .
  4. Check oil pressure gauge and fuel gauge operation. If gauges do not operate properly, go to next step. If gauges operate properly, go to step  6 .
  5. Turn ignition switch to LOCK position. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Measure voltage between ground and instrument cluster Black 12-pin harness connector C287 terminal No. 8 (Red/Yellow wire). See Figure . If more than 10 volts exist, go to next step. If 10 volts or less exist, repair open in Red/Yellow wire. Recheck system operation.
  6. Turn ignition switch to LOCK position. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Measure resistance between instrument cluster printed circuit terminal No. 11 at instrument cluster White 16-pin connector C286 (component side) and terminal No. 8 at instrument cluster Black 12-pin connector C287 (component side). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, check door ajar indicator bulb in instrument cluster. Replace bulb as necessary. If bulb is okay, replace instrument cluster printed circuit. See PRINTED CIRCUIT  under REMOVAL & INSTALLATION. Clear DTCs and recheck system operation.
  7. Disconnect Generic Electronic Module (GEM) 26-pin harness connector C280. GEM connector C280 is located behind center of instrument cluster. Measure resistance of Black/Orange wire between GEM harness connector C280 terminal No. 9 and instrument cluster Black 16-pin harness connector C286 terminal No. 8. 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 Black/Orange wire. Clear DTCs and recheck system operation.
  8. Measure resistance between ground and GEM harness connector C280 terminal No. 9 (Black/Orange wire). If resistance is more than 10 k/ohms, replace GEM. Clear DTCs and recheck system operation. If resistance is 10 k/ohms or less, repair short to ground in Black/Orange wire. Clear DTCs and recheck system operation.
  9. Turn ignition switch to LOCK position. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Disconnect Generic Electronic Module (GEM) 26-pin harness connector C280. GEM connector C280 is located behind center of instrument cluster. Turn ignition switch to RUN position. Measure voltage between ground and GEM harness connector C280 terminal No. 9 (Black/Orange wire). If voltage does not exist, go to next step. If any voltage exists, repair short to voltage in Black/Orange wire. Clear DTCs and recheck system operation.
  10. Using NGS tester, select GEM PID DRAJR_L from PID/DATA monitor menu. Monitor PID value and set active command ajar light OFF. If PID value indicates OFF---, replace instrument cluster printed circuit. See PRINTED CIRCUIT  under REMOVAL & INSTALLATION. Clear DTCs and recheck system operation. If PID value does not indicate OFF---, replace GEM. Clear DTCs and recheck system operation.
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