Mazda Protege 5. Manual — part 281

CONTROL SYSTEM

07–40–8

3. Fix a dial gauge on a magnetic base and set the

measuring probe onto point A on the pressure
plate surface.

4. Turn off the magnetic clutch by disconnecting the

ground from the A/C compressor body, then
measure the dial gauge readings.

5. Measure the clearance for points B and C on the

pressure plate surface by repeating the above
Steps 2 through 4.

6. Verify that the clearance is within the

specification.

•

If not within the specification, remove the
pressure plate and adjust the clearance by
changing the shim (0.2 mm {0.008 in}, 0.5
mm {0.02 in}) or the number of shims. (See
07–40–6 MAGNETIC CLUTCH
DISASSEMBLY/ASSEMBLY.)

Clearance

0.4—0.6 mm {0.016—0.023 in}

End Of Sie

MAGNETIC CLUTCH INSPECTION

A3U074061010W03

1. Disconnect the magnetic clutch connector.
2. Connect B+ to terminal A of magnetic clutch and

ground to the A/C compressor body.

3. Verify that the magnetic clutch operates.

•

If not as specified, replace the stator and
thermal protector.

End Of Sie

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CONTROL SYSTEM

07–40–9

07–40

REFRIGERANT PRESSURE SWITCH REMOVAL/INSTALLATION

A3U074061503W01

1. Disconnect the negative battery cable.
2. Remove the receiver/drier. (See 07–11–13 RECEIVER/DRIER REMOVAL/INSTALLATION.)
3. Remove the refrigerant pressure switch. (See 07–

40–9 Refrigerant Pressure Switch Installation
Note)

4. Install in the reverse order of removal.

Refrigerant Pressure Switch Installation Note

1. Apply compressor oil to the O-ring and connect the joint.

End Of Sie

REFRIGERANT PRESSURE SWITCH INSPECTION

A3U074061503W02

1. Install the manifold gauge set.
2. Disconnect the refrigerant pressure switch connector.
3. Verify the high-pressure side reading of the

manifold gauge and continuity between the
terminals of the refrigerant pressure switch.

•

If not as specified, replace the refrigerant
pressure switch.

End Of Sie

CLIMATE CONTROL UNIT REMOVAL

A3U074061190W01

1. Disconnect the negative battery cable.
2. Disconnect the air mix and airflow mode wires from each wire clamp and link.
3. Remove the center panel. (See 09–17–4 CENTER PANEL REMOVAL/INSTALLATION.)
4. Remove the screws and the climate control unit.

End Of Sie

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CONTROL SYSTEM

07–40–10

CLIMATE CONTROL UNIT INSTALLATION

A3U074061190W02

1. Install the climate control unit to the center panel.
2. Pass each wire through the following routes then

connect to each unit.

3. Connect the climate control unit connectors.
4. Install the center panel.
5. Adjust the climate control unit wire. (See 07–40–

11 CLIMATE CONTROL UNIT WIRE
ADJUSTMENT.)

6. Connect the negative battery cable.

End Of Sie

CLIMATE CONTROL UNIT DISASSEMBLY/ASSEMBLY

A3U074061190W03

1. Disassemble in the order indicated in the table.

2. Assemble in the reverse order of disassembly.

Wire Disassembly Note

1. Disassemble the wires in the order indicated in

the table.

Z3U0740W016

1

Dial

2

Knob

3

Panel

4

Fan switch

5

Illumination bulb

6

Air mix wire
(See 07–40–10 Wire Disassembly Note)
(See 07–40–11 Wire Assembly Note)

7

Airflow mode wire
(See 07–40–10 Wire Disassembly Note)
(See 07–40–11 Wire Assembly Note)

8

Body

Y3E8540W028

X3U740WAX

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CONTROL SYSTEM

07–40–11

07–40

Wire Assembly Note

1. Assemble the wires in the order indicated in the

table.

End Of Sie

CLIMATE CONTROL UNIT WIRE ADJUSTMENT

A3U074061190W04

Air Mix Wire

1. Set the temperature control dial at max cold.
2. Set the air mix link to max cold in the direction

shown by the arrow and insert a screwdriver at
the set hole.

3. Connect the air mix wire to air mix link.
4. Clamp the air mix wire to wire clamp.
5. Verify that the temperature control dial moves its

full stroke.

Airflow Mode Wire

1. Set the airflow mode control dial at defroster.
2. Set the airflow mode main link to defroster in the

direction shown by the arrow and insert a
screwdriver at the set hole.

3. Connect the airflow mode wire to airflow mode

main link.

4. Clamp the airflow mode wire to wire clamp.
5. Verify that the airflow mode control dial moves its

full stroke.

End Of Sie

CLIMATE CONTROL UNIT INSPECTION

A3U074061190W05

1. Remove the climate control unit.
2. Connect the climate control unit connector.
3. Turn the ignition switch to ON position.
4. Measure the voltage at each climate control unit terminal and refer to the terminal voltage list.

•

If not as specified, inspect the parts listed under “Action” and the related wiring harness.
— If there is any malfunction, replace the climate control unit.

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