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Section 593 (Rear A/C Unit): Disassembly

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE BLOWER MOTOR 
  2. REMOVE POWER TRANSISTOR 
  3. REMOVE THERMISTOR 
  4. REMOVE WATER VALVE 
    Fig 1: Removing Water Valve
    G02852712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the packing.
    2. Remove the 3 screws and 2 brackets.
    3. Grip the claws of the hose clips and slide the hose clips along the hoses.
    4. Disconnect the water hoses and pipes.
      Fig 2: Disconnecting Hoses & Pipes
      G02852713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 2 screws and 2 clamps.
    6. Remove the 3 screws and water valve.
  5. REMOVE DRAIN HOSE 
    Fig 3: Removing Drain Hose
    G02852714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE EXPANSION VALVE 
    Fig 4: Removing Expansion Valve
    G02852715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the 4 screws and 2 brackets.
    2. Pry out the packings.
      NOTE: At the time of installation, please refer to the following item. Do not refuse the packing.
    3. Using a hexagon wrench (5.0mm, 0.20 in.), remove the 2 bolts and expansion valve.

      Torque: 5.4 N.m (55 kgf.cm, 48in.lbf) 

      NOTE: Cap the open fittings immediately to keep moisture or dirt out of the system.
      NOTE: At the time of installation, please refer to the following item. Lubricate 2 new O-rings with compressor oil and install them to the tube and valve.
    4. Remove the holder and disconnect the heat sensing tube.
    5. Loose the 2 nuts and remove the expansion valve.
      Fig 5: Loosening Expansion Valve Nuts
      G02852716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 

      Nut A: 13 N.m (135 kgf.cm, 10 ft.lbf) 

      Nut B: 22 N.m (235 kgf.cm, 16 ft.lbf) 

    NOTE: At the time of installation, please refer to the following item. Lubricate 2 new O-rings with compressor oil and install them to the expansion valve.
  7. REMOVE EVAPORATOR 
    Fig 6: Removing Evaporator
    G02852717Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the 8 screws and cover.
    2. Pull out the evaporator.
  8. REMOVE AIR OUTLET SERVOMOTOR 
    Fig 7: Removing Air Outlet Servomotor
    G02852718Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a screwdriver, release the claw and remove the plate.
      NOTE: Tape the screwdriver tip before use.
    2. Remove the 3 screws and servomotor.
  9. SEPARATE REAR A/C UNIT 
    Fig 8: Separating Rear A/C Unit
    G02852719Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the 2 screws, clamp and blower case.
    2. Remove the 10 screws and separate the A/C unit.
    3. Remove the sliding door and shaft.
    4. Remove the heater radiator and insulator.
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