Infinity_QX56_2004-2005

Power Door Locks

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Door Lock Motor



Removal & Installation
Front Door

The door lock actuator is part of the door lock assembly.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the power window/door lock switch assembly.
  6.  
  7. Remove the screws behind the pull handle cover.
  8.  
  9. Remove the cap from the pull handle escutcheon. Remove the screw.
  10.  
  11. Remove the screws behind the pull handle escutcheon. Remove the pull handle escutcheon.
  12.  
  13. Remove the screw behind the armrest. Remove the armrest.
  14.  
  15. Remove the memory switch. Disconnect the electrical connector.
  16.  
  17. Remove the step lamp. Disconnect the electrical connector.
  18.  
  19. Remove the door finisher and disconnect the lock cable and handle cable from the door handle assembly.
  20.  
  21. Remove the door lock knob.
  22.  
  23. Remove the door power window regulator.
  24.  
  25. Remove the door window rear glass run. Remove the door side grommet, a Torx head bolt from the grommet hole.
  26.  
  27. While pulling the outside handle, remove the door key cylinder assembly or escutcheon.
  28.  
  29. Separate the key cylinder rod from the door key cylinder assembly, if equipped.
  30.  
  31. While pulling the outside handle, slide it toward the rear of the vehicle in order to remove it.
  32.  
  33. Remove the front and rear gaskets.
  34.  
  35. Remove the Torx head bolts and the door lock assembly.
  36.  
  37. While pulling the outside handle bracket, slide it toward the rear of the vehicle to remove it and the door lock assembly.
  38.  
  39. Disconnect the door lock actuator electrical connector.
  40.  
  41. Separate the outside handle cable connection from the outside handle bracket.
  42.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  
  3. When installing each rod, be sure to rotate the rod holder until a click is felt.

    Click image to see an enlarged view

    Fig. Front door lock assembly and related components



    Click image to see an enlarged view

    Fig. Front door lock key assembly and related components



    Click image to see an enlarged view

    Fig. Front door panel and related components

  4.  

Rear Door
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the power window/door lock switch assembly.
  6.  
  7. Remove the screws behind the pull handle cover.
  8.  
  9. Remove the cap from the pull handle escutcheon. Remove the screw.
  10.  
  11. Remove the screws behind the pull handle escutcheon. Remove the pull handle escutcheon.
  12.  
  13. Remove the screw behind the armrest. Remove the armrest.
  14.  
  15. Remove the step lamp. Disconnect the electrical connector.
  16.  
  17. Remove the door finisher and disconnect the lock cable and handle cable from the door handle assembly.
  18.  
  19. Remove the door lock knob.
  20.  
  21. Remove the door tweeter (speaker).
  22.  
  23. Remove the rear door window and door module assembly (power window regulator).
  24.  
  25. Remove the door grommets. Remove the outside handle nuts from the grommet hole.
  26.  
  27. Remove the outside handle.
  28.  
  29. Disconnect the door lock actuator connector.
  30.  
  31. Separate the outside handle rod connection.
  32.  

To install:

  1. Installation is the reverse of the removal procedure.

    Click image to see an enlarged view

    Fig. Rear door lock assembly and related components



    Click image to see an enlarged view

    Fig. Rear door panel and related components

  2.  

Door Lock Diagnosis & Testing





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Fig. Power door lock components and harness connector locations



Click image to see an enlarged view

Fig. Power door lock wiring schematic

Door Lock Switch



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Carefully pry upward on the switch assembly.
  6.  
  7. Disconnect the electrical connectors from the switch assembly.
  8.  
  9. Remove the switch assembly.
  10.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  

 
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