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Door Module Testing

  1. Disconnect negative battery cable. Remove front door trim panel. See DOOR TRIM PANEL  under REMOVAL & INSTALLATION. Verify door module connectors are properly connected. Repair as necessary and recheck system operation. If connectors are properly connected, go to next step.
  2. Disconnect door module 12-pin connector. Using an ohmmeter, check for continuity between ground and terminal No. 7 (Black wire) at door module 12-pin wiring harness connector. See Figure . If continuity exists, go to next step. If continuity does not exist, repair open Black wire ground circuit.
  3. Connect negative battery cable. Using a voltmeter, measure voltage between ground and terminal No. 12 (Tan wire) at door module 12-pin wiring harness connector. If battery voltage is present, go to next step (inoperative front window), or go to step 8) (inoperative rear window). If battery voltage is not present, repair open in Tan wire.
  4. Disconnect negative battery cable. Disconnect inoperative power window motor connector. Using an ohmmeter, check for continuity between ground and terminals No. 1 and 2 at door module 12-pin wiring harness connector. Continuity should not exist at either terminal. If continuity does not exist, go to next step. If continuity exists, repair short to ground.
  5. Check continuity of Light Blue wire (driver module) or Brown wire (passenger module) between terminal No. 1 at door module 12-pin wiring harness connector and power window motor wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in appropriate circuit.
  6. Check continuity of White wire (driver module) or Violet wire (passenger module) between terminal No. 2 at door module 12-pin wiring harness connector and power window motor wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in appropriate circuit.
  7. Reconnect door module connector. Connect negative battery cable. Turn ignition on. Connect a DVOM between power window wiring harness connector terminals. Battery voltage should be present with power window switch in up or down position. No voltage should be present with switch in neutral (off) position. If voltage is not as specified, replace door module. If voltage is as specified, door module test is complete. Go to POWER WINDOW MOTOR TEST  .
  8. Disconnect negative battery cable. Remove rear door power window switch. See POWER WINDOW SWITCH R & I  . Check rear door power window switch continuity. See POWER WINDOW SWITCH TEST  . Replace switch as necessary. If switch is okay, go to next step.
  9. Reconnect rear door power window switch connector. Disconnect inoperative power window motor connector. Using an ohmmeter, check continuity between ground and terminal No. 3 (Dark Blue/White wire at driver module or Gray/Black wire at passenger module) at door module 12-pin wiring harness connector. If continuity does not exist, go to next step. If continuity exists, repair short to ground in appropriate circuit.
  10. Check continuity between ground and terminal No. 4 (Red/Black wire at driver module or Dark Green/White wire at passenger module) at door module 12-pin wiring harness connector. If continuity does not exist, go to next step. If continuity exists, repair short to ground in appropriate circuit.
  11. Check continuity of Dark Blue/White wire (driver module) or Gray/Black wire (passenger module) between terminal No. 3 at door module 12-pin wiring harness connector and power window motor wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in appropriate circuit.
  12. Check continuity of Red/Black wire (driver module) or Dark Green/White wire (passenger module) between terminal No. 4 at door module 12-pin wiring harness connector and power window motor wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in appropriate circuit.
  13. Reconnect door module connector. Connect negative battery cable. Turn ignition on. Measure voltage between ground and each terminal of power window motor wiring harness connector. With power window switch in neutral position (off), battery voltage should be present at each terminal. Also, battery voltage should be present 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 is as specified, go to POWER WINDOW MOTOR TEST  for testing.
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