PROCEDURE
REMOVE COOLER EXPANSION VALVE
Using a 4 mm hexagon wrench, remove the 2 hexagon bolts and cooler expansion valve.
REMOVE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
Remove the 3 screws and No. 1 air conditioning radiator damper servo sub-assembly.
REMOVE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
Remove the 2 screws and No. 2 air conditioning radiator damper servo sub-assembly.
REMOVE NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (for 3 Zone Type)
Remove the 4 screws and No. 3 air conditioning radiator damper servo sub-assembly.
REMOVE QUICK HEATER ASSEMBLY
Disengage the 5 clamps.
Remove the 2 screws and quick heater assembly as shown in the illustration.
Remove the screw.
Disengage the guide and remove the quick heater bracket.
REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY
Disengage the 3 claws and remove the heater clamp.
Remove the screw and clamp.
Remove the heater radiator unit sub-assembly from the air conditioning radiator assembly as shown in the illustration.
Note
Prepare a drain pan or cloth in case the cooling water leaks.
REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY
Remove the 6 screws.
Disengage the 7 claws and remove the plate cover.
Disengage the clamp.
Remove the No. 1 cooler evaporator sub-assembly with evaporator temperature sensor (No. 1 cooler thermistor) from the plate cover.
Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.
REMOVE EVAPORATOR TEMPERATURE SENSOR (NO. 1 COOLER THERMISTOR)