Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 537
1A–16 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Heater Core and / or Mode Door
Disassembled View
860RS001
Legend
(1) Case (Temperature Control)
(2) Mode Door
(3) Duct
(4) Heater Unit
(5) Case (Mode Control)
(6) Heater Core
Removal
1. Disconnect the battery ground cable.
2. Drain the engine coolant.
3. Discharge and recover refrigerant (with air
conditioning).
D
Refer to Refrigerant Recovery in this section.
4. Remove heater unit.
D
Refer to Heater Unit in this section.
5. Remove duct.
6. Remove case (Mode control) and do not remove link
unit at this step.
HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–17
7. Remove case (Temperature control). Separate two
halves of core case.
860R200007
8. Remove heater core (1).
860R200006
9. Pull out the mode door while raising up the catch of
the door lever.
860RS004
Inspection
Check for foreign matter in the heater core, stains or core
fin damage.
Installation
To install, follow the removal steps in the reverse order,
noting the following point:
1. Check that each mode door operates properly.
1A–18 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Heater Mode Control Link Unit
Disassembled View
860RS005
Legend
(1) Case (Mode Control)
(2) Heater Unit
(3) Mode Sub-lever
(4) Clip
(5) Door Lever
(6) Rod
(7) Washer and Mode Main Lever
Removal
1. Disconnect the battery ground cable.
2. Drain engine coolant.
3. Discharge and recover refrigerant (with air
conditioning).
D
Refer to Refrigerant Recovery in this section.
4. Remove heater unit.
D
Refer to Heater Unit in this section.
5. Remove the case (Mode control) from heater unit.
6. Remove washer and the mode main lever.
7. Remove rod.
8. Press the tab of the sub-lever inward, and take out the
sub-lever.
9. Pull out the door lever while raising up the catch of the
door lever.
860RS006
10. Remove clip.
HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–19
Installation
To install, follow the remove steps in the reverse order,
noting the following points:
1. Apply grease to the mode sub-lever and to the
abrasive surface of the heater unit.
2. After installing the link unit, check to see if the link unit
operates correctly.
Heater Temperature Control Link Unit
Disassembled View
860RS007
Legend
(1) Case (Temperature control)
(2) Clip
(3) Door Lever
(4) Clip
(5) Heater Unit
(6) Rod
(7) Sub-lever
Removal
1. Disconnect the battery ground cable.
2. Drain engine coolant.
3. Discharge and recover refrigerant (with air
conditioning).
D
Refer to Refrigerant Recovery in this section.
4. Remove heater unit.
D
Refer to Heater Unit in this section.
5. Remove the case (Temperature control) from the
heater unit.
6. Remove rod.
7. Remove sub-lever.
8. Pull out the door lever while raising up the catch of the
door lever.
9. Remove clip.
Installation
To install, follow the removal steps in the reverse order,
noting the following points:
1. Apply grease to the sub-lever and to the abrasive
surface of the heater unit.
2. After installing the link unit, check to see if the link unit
operates correctly.
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