Air Conditioning Control Assembly: Disassembly

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE CONSOLE UPPER PANEL GARNISH FRONT
1. Remove the 2 screws.
2. Using a screwdriver, detach the 2 claws and remove the panel garnish from the A/C control.
  HINT:
  
  Tape the screwdriver tip before use.
  
  Fig 1: Identifying Panel Garnish From A/C Control Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER CONTROL HOUSING
1. Remove the 6 screws.
2. Using a screwdriver, detach the 4 claws. Then separate the heater control housing.
  HINT:
  
  Tape the screwdriver tip before use.
  
  Fig 2: Identifying Heater Control Housing Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the 2 cooler wires and remove the control housing
  
  Fig 3: Identifying Control Housing Cooler Wires
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE AIR CONDITIONER AMPLIFIER ASSEMBLY
1. Remove the 2 screws, cover plate and water protective sheet.
  
  Fig 4: Identifying Cover Plate And Water Protective Sheet Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the A/C amplifier.
3. Remove the 2 cooler wires.
REMOVE NO. 1 COOLER WIRE
1. Remove the cooler wire from the control switch.
REMOVE HEATER CONTROL BASE SUB-ASSEMBLY
1. Remove the 2 screws.
  
  Fig 5: Identifying Heater Control Base Sub-Assembly Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a screwdriver, detach the 7 claws as shown in the illustration.
  HINT:
  - Lift up the black film. Use the screwdriver to detach the claws labeled A in the illustration.
  - Tape the screwdriver tip before use.
    
    Fig 6: Identifying Claws
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Face the base upward as shown in the illustration.
4. Slowly remove the base.
  NOTE: If the base is removed while it is facing down, the control knob may fall off.
  
  Fig 7: Removing Base
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL MULTI-DISPLAY JUNCTION BLOCK (w/ Navigation System)
1. Remove the 2 screws and multi-display junction block.
  
  Fig 8: Identifying Multi-Display Junction Block Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER CONTROL KNOB
1. Remove the control knobs.
  
  Fig 9: Identifying Control Knobs
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002