Rear Heater Unit: Disassembly

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE AIR MIX SERVOMOTOR
Remove the 3 screws and the air mix servomotor.

Fig 1: Removing Air Mix Servomotor Screws
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REMOVE HEATER RADIATOR
1. Remove the 3 screws and 2 clamps
2. Pull out the heater radiator.
  
  Fig 2: Removing Heater Radiator Screws And Clamps
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2 screws, 2 clamps and the heater radiator pipes.
4. Remove the 2 O-rings.
  HINT:
  
  At the time of reassembly, do not reuse the O-rings
  
  Fig 3: Removing Screws And Clamps Of Heater Radiator Pipes
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE POWER TRANSISTOR
Remove the 2 screws and the power transistor.

Fig 4: Removing Power Transistor Screws
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REMOVE BLOWER MOTOR
1. Remove the 3 screws and the cover.
2. Remove the 4 screws, the 3 holding springs and separate the heater cases.
  
  Fig 5: Removing Blower Motor Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the nut and the fan.
  
  Fig 6: Removing Nut And Fan
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the screws and the blower motor.
  
  Fig 7: Removing Screws And Blower Motor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002