Toyota Sienna Service Manual: Disassembly

1. REMOVE BLOWER ASSEMBLY

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

2. 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

(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)

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

5. 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

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

7. 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

(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

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

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

10. 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

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

12. REMOVE NO. 4 AIR CONDITIONING RADIATOR BRACKET

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

13. REMOVE NO. 1 AIR DUCT

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

14. REMOVE NO. 1 COOLER THERMISTOR

(a) Disengage the clamp.

(b) Remove the 2 screws.

(c) Remove the 11 screws.

(d) Remove the No. 1 cooler thermistor.