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Door Module Test

  1. Disconnect negative battery cable. Remove front door trim panel. See DOOR MODULE  under REMOVAL & INSTALLATION. Verify left and right door module connectors are properly connected. If not properly connected, connect properly. If connectors are properly connected, go to next step.
  2. Disconnect door module connectors. Using an ohmmeter, check for continuity between door module connector ground terminal and chassis ground. See Figure or Figure . If no continuity exists, repair open in Black wire between door module connector and chassis ground. If continuity exists, go to next step.
  3. Connect negative battery cable. Using a voltmeter, check for battery voltage at door module connector fused (B+) terminal. See Figure or Figure . If no battery voltage exists, repair open in Tan wire. If inoperative window is on front door, go to next step. If inoperative window is on rear door, go to step 8).
  4. Disconnect negative battery cable. Disconnect inoperative power window motor connector. Using an ohmmeter, check for continuity between door module connector front window driver UP and DOWN terminals and chassis ground. See Figure or Figure . If continuity exists, repair short to ground. If no continuity exists, go to next step.
  5. Using an ohmmeter, check for continuity between door module connector front window driver UP terminal and power window motor connector, Light Blue wire (left side) or Brown wire (right side). See Figure or Figure . If no continuity exists, repair open in appropriate circuit.
  6. Check for continuity between door module connector front window driver DOWN terminal and power window motor connector, White wire (left side) or Violet wire (right side). See Figure or Figure . If no continuity exists, repair open in appropriate circuit. If continuity exists, go to next step.
  7. Connect door module connector to door module. Connect negative battery cable. Using a voltmeter, check for battery voltage between power window motor connector terminals. Verify voltage exists when power window switch is in UP or DOWN position and no voltage exists when switch is in default position. If voltage is not as specified, replace door module. If voltage exists as specified, go to MOTOR TEST  .
  8. Disconnect negative battery cable. Remove rear door trim panel. See POWER WINDOW SWITCH  under REMOVAL & INSTALLATION. Check rear door power window switch continuity. See POWER WINDOW SWITCH TEST  . If rear door power window switch fails any continuity test, replace faulty switch. If rear door power window switch passes continuity tests, go to next step.
  9. Connect chassis wiring to rear door power window switch. Disconnect inoperative power window motor connector. Using an ohmmeter, check for continuity between door module connector rear window driver UP and DOWN terminals and chassis ground. If continuity exists, repair short to ground. If no continuity exists, go to next step.
  10. Using an ohmmeter, check for continuity between door module connector rear window driver UP terminal and rear power window motor connector Brown wire. If no continuity exists, repair open. Check for continuity between door module connector rear window driver DOWN terminal and rear power window motor connector Violet wire. If no continuity exists, repair open. If continuity exists, go to next step.
  11. Connect door module connector to door module. Connect negative battery cable. Using a voltmeter connected to ground, check for battery voltage at each power window motor connector terminal. Also, verify voltage exists at one terminal only when power window switch is in UP or DOWN position. If voltage is not as specified, replace door module. If voltage exists as specified, go to MOTOR TEST  .
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