Control System (HVAC): Removal & Installation Mazda MX-5 NB рестайлинг

Refrigerant Pressure Switch Installation Note

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

Scheme 75

Scheme 76

1. Remove the glove compartment.
2. Start the engine.
3. Turn the A/C switch on.
4. Turn the fan switch on.
5. Connect the positive (+) and negative (-) probes of the voltmeter to terminal A and terminal B of the thermoswitch respectively. (The wiring harness connector must be connected to the thermoswitch connector.)
6. Inspect the voltage as shown below. If not as specified, inspect on/off points of the thermoswitch.

Scheme 77

Scheme 78

1. Disconnect the negative battery cable.
2. Remove the cooling unit. (See «COOLING UNIT REMOVAL/INSTALLATION»(ref-194460-S21709370042005092800000) .)
3. Remove the thermoswitch (See «COOLING UNIT DISASSEMBLY/ASSEMBLY»(ref-194460-S09493294022005092800000) .)
4. Connect the negative battery cable.
5. Connect the thermoswitch connector to the wiring harness connector.
6. Turn the ignition switch to ON position.
7. Turn the A/C switch on.
8. Turn the fan switch on.
9. Immerse the sensor part of thermoswitch in a container of ice water.
10. Connect the positive (+) and negative (-) probes of the voltmeter to terminal A and terminal B of the thermoswitch respectively.
11. Inspect the voltage as shown below. If not as specified, replace the thermoswitch. (See «COOLING UNIT DISASSEMBLY/ASSEMBLY»(ref-194460-S09493294022005092800000) .)

Scheme 79

Scheme 80

1. Disconnect the negative battery cable.
2. Disconnect the air intake wire from the blower unit.
3. Disconnect the air mix wire and airflow mode wire from the heater unit.
4. Remove the hole covers by inserting a small, tape-wrapped, flathead screwdriver into the slot, then carefully prying them off without scratching the center panel. Pry up and pull off the hole covers carefully to prevent the posts from breaking off.
5. With the beveled parts of the SST (Removing Tool) facing inward, insert them into the climate control unit.
6. Pull the SST (Removing Tool) outward and reward to slide out the climate control unit.
7. Disconnect the climate control unit connectors.

Scheme 81

Scheme 82

1. Pass each wire through the following routes, then connect them to each unit.
2. Connect the climate control unit connectors.
3. Insert the climate control unit until each clip clicks.
4. Install the hole covers carefully to prevent the posts from breaking off.
5. Adjust the climate control unit wire. (See «CLIMATE CONTROL UNIT WIRE ADJUSTMENT»(ref-194461-S13776842512005092800000) .)
6. Connect the negative battery cable.

Scheme 83

Scheme 84

1. Disassemble in the order indicated in the figure.
2. Assemble in the reverse order of disassembly.

Scheme 85

Scheme 86

1. Remove the climate control unit. (See «CLIMATE CONTROL UNIT REMOVAL»(ref-194461-S33572679582005092800000) .)
2. Inspect for continuity between the A/C switch terminals using an ohmmeter.
3. Connect battery positive voltage to terminal C and ground to the terminal A.
4. Turn the A/C switch on.
5. Verify that the LED illuminates. If not as specified, replace the A/C switch.

Scheme 87

Scheme 88

1. Remove the climate control unit. (See «CLIMATE CONTROL UNIT REMOVAL»(ref-194461-S33572679582005092800000) .)
2. Inspect for continuity between the fan switch terminals using an ohmmeter. If not as specified, replace the fan and rear window defroster switch.

Scheme 89

Scheme 90

1. Remove the climate control unit. (See «CLIMATE CONTROL UNIT REMOVAL»(ref-194461-S33572679582005092800000) .)
2. Inspect for continuity between the defroster switch terminals using an ohmmeter. If not as specified, replace the defroster switch.

Scheme 91

1. Set the REC/FRESH lever at REC.
2. Set the air intake link to REC in the direction of the arrow and insert a screwdriver into the set hole.
3. Connect the air intake wire to the air intake link.
4. Clamp the air intake wire to wire clamp.
5. Verify that the REC/FRESH lever moves its full stroke.

Scheme 92

1. Set the temperature control dial at MAX HOT.
2. Set the air max link to MAX HOT in the direction of the arrow and insert a screwdriver into the set hole.
3. Connect the air mix wire to the air mix link.
4. Clamp the air mix wire to wire clamp.
5. Verify that the temperature control dial moves its full stroke.

Scheme 93

1. Set the airflow mode control dial at VENT.
2. Set the airflow mode link to VENT in the direction of the arrow and insert a screwdriver into the set hole.
3. Connect the airflow mode wire to the airflow mode link.
4. Clamp the airflow mode wire to wire clamp.
5. Verify that the airflow mode control dial moves its full stroke.