7A-4 Heater and Ventilation:
Repair Instructions
HVAC Unit Components
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For manual type A/C, refer to “HVAC Unit Components
in Section 7B”.
For automatic type A/C, refer to “HVAC Unit
Components in Section 7B”.
HVAC Unit Removal and Installation
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Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air
Bag System in Section 8B”.
3) Remove cowl top panel from vehicle body referring
to “Cowl Top Components in Section 9K”.
4) Drain engine coolant, and then disconnect heater
hoses (1) from HVAC unit (2).
5) Remove instrument panel from vehicle body
referring to “Instrument Panel Removal and
Installation in Section 9C”.
6) Remove nuts (3).
7) Remove HVAC unit from vehicle body.
Installation
Reverse removal procedure noting the following
instructions.
• Be careful not to catch any cable and wiring harness
in inappropriate position.
• Adjust control cables of HVAC control unit referring to
“HVAC Control Unit Removal and Installation”.
• Fill engine coolant to radiator.
• Enable air bag system referring to “Enabling Air Bag
System in Section 8B”.
Blower Motor Removal and Installation
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Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air
Bag System in Section 8B”.
3) Disconnect connector (1) from blower motor (2).
4) Remove blower motor from HVAC unit by removing
screws (3).
Installation
Reverse removal procedure noting the following
instruction.
• Enable air bag system referring to “Enabling Air Bag
System in Section 8B”.
Blower Motor Inspection
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• Check for continuity between two terminals as shown.
If there is no continuity, replace blower motor.
3
2
3
1
3
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3
1
2
3
3
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