Rear Heater Unit: Disassembly

REMOVE AIR MIX SERVO MOTOR
1. Remove the 3 screws and air mix servo motor.
  
  Fig 1: Identifying Air Mix Servo Motor Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER RADIATOR
1. Remove the 3 screws and 2 clamps.
2. Pull out the heater radiator.
  
  Fig 2: Locating Heater Radiator Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2 screws, 2 clamps and heater radiator pipes.
4. Remove the 2 O-rings.
  HINT:
  
  At the time of reassembly, do not reuse the O-rings.
  
  Fig 3: Locating Heater Radiator Pipes Clamp Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE POWER TRANSISTOR
1. Remove the 2 screws and power transistor.
  
  Fig 4: Identifying Power Transistor Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE AIR INLET TEMPERATURE SENSOR
1. Disconnect the connector.
2. Remove the screw and air inlet temperature sensor.
  
  Fig 5: Identifying Air Inlet Temperature Sensor Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE BLOWER MOTOR
1. Remove the 3 screws and cover.
2. Remove the 4 screws, 3 holding springs and separate the heater cases.
  
  Fig 6: Identifying Blower Motor Cover Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the nut and fan.
  
  Fig 7: Identifying Fan Nut
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the screws and blower motor.
  
  Fig 8: Identifying Blower Motor Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002