Mazda CX-5 Service & Repair Manual: Airflow Mode Control [Full Auto Air Conditioner]
Purpose
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The airflow mode control changes the airflow mode according to the vehicle environment.
Function
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The airflow mode control drives the airflow mode actuator according to the mode switch, defroster switch, and the vehicle environment and switches the position of the airflow mode door.
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The airflow mode control has automatic and manual controls.
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The airflow mode automatic control performs the following correction:
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Engine coolant temperature correction (warm-up correction)
Airflow mode automatic control
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The climate control unit determines the airflow mode based on the current air mix actuator opening angle and solar radiation amount.
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Determined value used for the airflow mode is changed according to the signal from the solar radiation sensor.
Airflow mode manual control
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The climate control unit switches the airflow mode based on the MODE switch operation.
|
Airflow mode |
Operation switch |
Air vent |
|
VENT |
Mode switch |
CENTER VENT, SIDE VENT |
|
BI-LEVEL |
CENTER VENT, SIDE VENT, FRONT HEAT, REAR HEAT |
|
|
HEAT |
FRONT HEAT, REAR HEAT, SIDE DEMISTER (low volume), DEFROSTER (low volume), SIDE VENT (low volume) |
|
|
DEF/HEAT |
FRONT HEAT, REAR HEAT, SIDE DEMISTER, DEFROSTER, SIDE VENT (low volume) |
|
|
DEFROSTER |
DEFROSTER switch |
SIDE DEMISTER, DEFROSTER, SIDE VENT (low volume) |
Correction
-
Engine coolant temperature correction (warm-up correction)
-
The engine coolant temperature correction (warm-up correction) prevents cold air from coming out of the lower vents after engine start in winter.
-
The engine coolant temperature correction (warm-up correction) switches the airflow mode according to the increase in the engine coolant temperature.
Construction
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The airflow volume control consists of the parts indicated in the following table:
|
Input device |
Control part |
Output device |
|
|
|
Operation
1. The climate control unit determines the airflow mode based on the operations of the mode and defroster switches and signals from each sensor which changes according to the vehicle environment.
2. The climate control unit drives the airflow mode actuator according to the results of the airflow mode determination and corrections.
Airflow Mode Actuator [Full Auto Air Conditioner]
Purpose
The airflow mode actuator moves the mode door in the A/C unit to switch the
air vent.
Function
Door open/close function
The airflow mode actuator drives the motor based ...
Airflow Temperature Control [Full Auto Air Conditioner]
Purpose
The airflow temperature control changes the airflow temperature according
to the vehicle conditions.
Function
The air mix actuator is driven and the air mix door positio ...
Other materials:
Ignition Coil Inspection [Skyactiv G 2.0]
Ignition Coil Inspection
1. Perform the spark test and identify the malfunctioning cylinder..
2. Replace the ignition coil of the malfunctioning cylinder with that of a normal
cylinder, and perform the spark test again..
If the spark is not normal due to a malfunctioning ignition coil, ...
Hydraulic Variable Valve Timing Actuator
Purpose, Function
The hydraulic variable valve timing actuator operates according to the hydraulic
pressure and changes the phases of the exhaust camshaft. As a result, the open/close
period of the exhaust valve is changed, optimized valve timing in accordance
with driving conditions ...
Camshaft Position (CMP) Sensor
Purpose/Function
Detects the camshaft speed as basic information for mainly determining the
fuel injection timing and ignition timing.
Detects the camshaft speed and inputs it to the PCM as a CMP signal.
Construction
Intake CMP sensor
Installed on the cylinder head.
...
