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All Windows Inoperative

NOTE: Driver Door Module (DDM) circuitry controls output to left front and left rear power window motors. Passenger Door Module (PDM) circuitry controls output to right front and right rear power window motors. See WIRING DIAGRAMS .
  1. Check operation of driver's power lock switch. If all door locks operate, use scan tool to check BCM, DDM and PCI data bus for proper operation. See BODY CONTROL MODULES - GRAND CHEROKEE article. If door locks do not operate properly, go to next step.
  2. Check operation of passenger's power lock switch. If passenger side doors lock and unlock, but driver's door does not, go to step  5. If all power door locks and power windows are inoperative from both front door switches, go to next step.
  3. Check fuse No. 12 (50-amp) in Power Distribution Center (PDC) located in engine compartment. If fuse is blown, repair short circuit and replace fuse. If fuse is okay, go to next step.
  4. Check for battery voltage at fuse No. 12 in PDC. If battery voltage does not exist, repair open circuit between battery and PDC. If battery voltage exists, go to next step.
  5. Disconnect negative battery cable. Remove driver's door trim panel. Disconnect DDM 15-pin connector. Check for continuity between ground and DDM 15-pin connector terminal No. 4 (Black wire). See Figure. If continuity does not exist, repair open ground circuit. If continuity exists, go to next step.
  6. Reconnect negative battery cable. Check for battery voltage at DDM 15-pin connector terminal No. 9 (Yellow/Violet wire). If battery voltage does not exist, repair open Yellow/Violet wire between battery and PDC. If battery voltage exists, replace DDM.
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