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HVAC Unit Removal and Installation
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.
3
1
3
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
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).
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Installation
Reverse removal procedure noting the following
instruction.
• Enable air bag system referring to "Enabling Air Bag
System: in Section 8B".
Blower Motor Inspection
3
• Check for continuity between two terminals as shown.
2
If there is no continuity, replace blower motor.
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• Check for operation and current.
a. Put blower motor (1) in a soft-jawed vise.
b. Connect battery to blower motor as shown.
c. Check if blower motor operates smoothly without
d. Check if ammeter indicates the specified current.
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Heater and Ventilation:
3
1
2
3
noise.
If measured current is out of specification, replace
blower motor.
Blower motor specified current at 12 V
16 A maximum
1
7A-5
3
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