Toyota Sienna Service Manual: Disassembly

Toyota Sienna Service Manual / Air conditioning / Air conditioning unit / Disassembly

1. REMOVE BLOWER ASSEMBLY

REMOVE BLOWER ASSEMBLY

(a) Remove the 2 screws and the blower assembly.

2. REMOVE MODE DAMPER SERVO SUB-ASSEMBLY

REMOVE MODE DAMPER SERVO SUB-ASSEMBLY

(a) Remove the 3 screws and the mode damper servo sub-assembly.

3. REMOVE AIRMIX DAMPER SERVO SUB-ASSEMBLY

REMOVE AIRMIX DAMPER SERVO SUB-ASSEMBLY

(a) Remove the 3 screws and the airmix damper servo sub-assembly.

4. REMOVE NO. 2 AIRMIX DAMPER SERVO SUBASSEMBLY (for Automatic Air Conditioning System)

REMOVE NO. 2 AIRMIX DAMPER SERVO SUBASSEMBLY (for Automatic Air Conditioning System)

(a) Remove the 3 screws and the No. 2 airmix damper servo sub-assembly.

5. REMOVE NO. 1 HEATER CLAMP

REMOVE NO. 1 HEATER CLAMP

(a) Release the 4 claw fittings and remove the No. 1 heater clamp.

6. REMOVE NO. 3 AIR CONDITIONING RADIATOR BRACKET

REMOVE NO. 3 AIR CONDITIONING RADIATOR BRACKET

(a) Remove the screw and the No. 3 air conditioning radiator bracket.

7. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY

REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY

(a) Remove the heater radiator unit sub-assembly from the air conditioning radiator assembly.

8. REMOVE AIR CONDITIONING TUBE ASSEMBLY

REMOVE AIR CONDITIONING TUBE ASSEMBLY

(a) Using a hexagon wrench 4.0 mm (0.15 in.), remove the 2 hexagon bolts and the air conditioning tube assembly.

(b) Remove the 2 O-rings from the air conditioning tube assembly.

9. REMOVE COOLER EXPANSION VALVE

REMOVE COOLER EXPANSION VALVE

(a) Remove the cooler expansion valve from the No. 1 cooler evaporator sub-assembly.

REMOVE COOLER EXPANSION VALVE

(b) Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.

10. REMOVE NO. 2 AIR CONDITIONING RADIATOR BRACKET

REMOVE NO. 2 AIR CONDITIONING RADIATOR BRACKET

(a) Remove the 2 screws and the No. 2 air conditioning radiator bracket.

11. REMOVE NO. 1 AIR CONDITIONING RADIATOR BRACKET

REMOVE NO. 1 AIR CONDITIONING RADIATOR BRACKET

(a) Remove the 3 screws and the No .1 air conditioning radiator bracket.

12. REMOVE NO. 4 AIR CONDITIONING RADIATOR BRACKET

REMOVE NO. 4 AIR CONDITIONING RADIATOR BRACKET

(a) Remove the No. 4 air conditioning radiator bracket.

13. REMOVE NO. 1 AIR DUCT

REMOVE NO. 1 AIR DUCT

(a) Release the 4 claw fittings and remove the No. 1 air duct.

14. REMOVE NO. 1 COOLER THERMISTOR

REMOVE NO. 1 COOLER THERMISTOR

(a) Disengage the clamp.

(b) Remove the 2 screws.

REMOVE NO. 1 COOLER THERMISTOR

(d) Remove the No. 1 cooler thermistor.

Removal

1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (See page AC-172) 2. REMOVE FRONT WIPER ARM HEAD CAP (See page WW-4) 3. REMOVE FRONT WIPER ARM RH (See page WW-4) 4. REMOVE FRONT WIPER ARM LH (Se ...

Reassembly

1. INSTALL NO. 1 COOLER THERMISTOR (a) Install the No. 1 cooler thermistor as shown in the illustration. NOTICE: Be sure to insert the thermistor only once because reinserting it will no ...

Other materials:

Operation check
1. DOOR LOCK FAIL-SAFE When a malfunction in the door control switch (manual switch, interlocked with key operation) has been detected, door lock/unlock operation becomes disabled. 2. CHECK ELECTRICAL DOOR LOCK OPERATION Check the basic function. Check that a ...

Settings display
The settings of the following items can be changed, refer to Language Select to change the language on the display. Units Select to change the unit for measure of the fuel consumption and outside temperature. Eco Driving Indicator Light Select to activate/deactivate the Eco Driving ...

Driving tips
Winter driving tips Carry out the necessary preparations and inspections before driving the vehicle in winter. Always drive the vehicle in a manner appropriate to the prevailing weather conditions. Preparation for winter Use fluids that are appropriate to the prevailing outside temperatures. ...