Automatic Air Conditioner

HEATER & COOLING UNIT ASSEMBLY

Removal and Installation

REMOVAL
1. Discharge the refrigerant from the A/C system. Refer to "HFC-134a (R-134a) Service Procedure" .
2. Drain the engine coolant from the cooling system. Refer to "DRAINING ENGINE COOLANT" (QR25DE), "DRAINING ENGINE COOLANT" (VQ35DE).
3. Remove the wiper motor and linkage.
4. Remove the fasteners and cowl top.
5. Disconnect the heater hoses from the heater core pipes.

CAUTION: Cap or wrap the pipe joint with a suitable material such as vinyl tape to avoid the entry of contaminants into the system.

6. Disconnect the refrigerant lines from the evaporator. Refer to "REFRIGERANT LINES".

CAUTION: Cap or wrap the line joint with a suitable material such as vinyl tape to avoid the entry of contaminants into the system.

7. Remove the steering member. Refer to "INSTRUMENT PANEL ASSEMBLY".
8. Remove the blower unit. Refer to "BLOWER UNIT".




9. Disconnect the mode door motor and air mix door motor connectors.
10. Remove the heater and cooling unit.

INSTALLATION
Installation is in the reverse order of removal.
- Fill the radiator with the specified water and coolant mixture. Refer to "REFILLING ENGINE COOLANT" (QR25DE), "REFILLING ENGINE COOLANT" (VQ35DE).
- Recharge the A/C system. Refer to "HFC-134a (R-134a) Service Procedure".