CLIMATE CONTROL UNIT [FULL-AUTO AIR CONDITIONER]
2016 – MX-5 – HVAC
CLIMATE CONTROL UNIT [FULL-AUTO AIR CONDITIONER]
Purpose
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The climate control unit controls the air conditioner in conjunction with the operation by the user and the vehicle driving conditions.
Functions
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The climate control unit determines the air-conditioning conditions based on the input signals from each sensor and the control module and the operation signals from the control panel, and controls each actuator, A/C compressor, and the blower motor.(See FULL-AUTO AIR CONDITIONER SYSTEM [FULL-AUTO AIR CONDITIONER].)
Automatic configuration function
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When the ignition is switched ON (engine off or on) after the climate control unit is replaced, the climate control unit reads the vehicle specification information sent via the CAN signal from the instrument cluster, and stores the vehicle specification information.
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The vehicle specification information recorded by the climate control unit is not erased even if the ignition is switched OFF (LOCK).
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The vehicle specification information recorded by the climate control unit is erased if the battery power is disconnected.
Construction
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A logic-type climate control unit has been adopted.
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The climate control unit consists of a control panel and a control unit.
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The switches and dials shown in the figure are positioned on the control panel.
Operation
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The climate control unit performs the controls shown in the following table.
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Airflow temperature control |
Airflow volume control |
Airflow mode control |
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Operation switches/dials |
Control condition before switch operation |
Control condition before switch operation |
Control condition before switch operation |
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Automatic control |
Automatic control |
Manual control |
Defroster control |
Automatic control |
Manual control |
Defroster control |
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Airflow volume control dial |
OFF |
No change |
OFF |
OFF |
OFF |
Fixed at mode when turned off |
No change |
No change |
|
AUTO |
No change |
Automatic control |
No change |
No change |
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|
1???7 |
Manual control |
Manual control |
Manual control |
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MODE dial |
AUTO |
No change |
No change |
No change |
Automatic control |
No change |
Automatic control |
Automatic control |
|
Vent |
Manual control |
Manual control |
Manual control |
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Bi-level |
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Heat |
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DEF/HEAT |
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Defroster |
Defroster control |
Defroster control |
Defroster control |
Defroster control |
No change |
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Temperature setting dial |
15 (°C)/60 (°F) |
MAX control |
MAX HI |
No change |
MAX HI |
No change |
No change |
No change |
|
16???28 (°C)/61???83 (°F) |
Automatic control |
No change |
No change |
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|
29 (°C)/84 (°F) |
MAX control |
AUTO HI*1 |
AUTO HI |
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RECIRCULATE switch |
No change |
No change |
No change |
No change |
No change |
No change |
No change |
|
|
A/C switch |
No change |
No change |
No change |
No change |
No change |
No change |
No change |
|
|
Rear window defogger switch |
No change |
No change |
No change |
No change |
No change |
No change |
No change |
|
- *1
- Water temperature correction takes precedence.
|
Air intake control |
A/C compressor control |
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Operation switches/dials |
Control condition before switch operation |
Control condition before switch operation |
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|
Manual control |
Defroster control |
Automatic control |
Defroster control |
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|
Airflow volume control dial |
OFF |
No change |
No change |
OFF |
OFF |
|
AUTO |
No change |
No change |
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|
1???7 |
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MODE dial |
AUTO |
No change |
Manual control*1 |
No change |
Automatic control*1 |
|
Vent |
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Bi-level |
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Heat |
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DEF/HEAT |
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Defroster |
Defroster control |
No change |
Defroster control |
No change |
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|
Temperature setting dial |
15 (°C)/60 (°F) |
No change |
No change |
No change |
No change |
|
16???28 (°C)/61???83 (°F) |
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|
29 (°C)/84 (°F) |
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RECIRCULATE switch |
Manual control |
Defroster control |
No change |
No change |
|
|
A/C switch |
No change |
No change |
Automatic control |
Defroster control |
|
|
Rear window defogger switch |
No change |
No change |
No change |
No change |
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- *1
- Returns to status prior to defroster control.