RX300 1999

Removal & Installation

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  1. Before servicing the vehicle, refer to the Precautions Section.
    NOTE
    If working near and/or around the SRS system and components, be sure to disable the SRS system.

  2.  
  3. Disconnect the negative battery cable.
    NOTE
    When disconnecting the cable be sure that the ignition switch and headlight switches are off.


    NOTE
    When disconnecting the cable, certain systems will have to be initialized after reconnecting the cable. These systems are adaptive front lighting system, power window control system, power back door system, SRS system, audio system, sliding roof system and certain DTC codes. Be sure to write down any important information before disconnecting the cable. The Toyota scan tool, or equivalent, must be used. Follow the directions on the appropriate scan tool to complete initialization procedure.

  4.  
  5. Properly discharge the air conditioning system.
  6.  
  7. Remove the air conditioning cooling unit.

    Click image to see an enlarged view

    Fig. Air conditioning unit retaining screw location points-RX300

  8.  
  9. Disconnect the electrical connector. Remove the retaining screws.
  10.  
  11. Remove the component from its mounting.

    Click image to see an enlarged view

    Fig. Air mix servo motor and related components-RX300

  12.  

To install:


NOTE
Be sure to use new fasteners, as required.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Be sure to properly charge the air conditioning system.
  4.  
  5. Check the system for proper operation. Correct as required.
  6.  
  7. Be sure to fill the cooling system with the proper grade and type coolant.
  8.  

 
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