Mazda 6 Training Manual page 345

Fail-safe function
• When the potentiometer of air mi actuator is malfunctioning, the air mi door is fied. Under this situation, if
the ignition switch is turned to the ON/LOCK position, the air mi door is controlled to be fully opened (MAX
HOT) or closed (MAX COLD) based on the ambient temperature. In addition, the door is fully closed (MAX
COLD) at the set temperature MAX COLD (15.0: European (L.H.D. U.K.) specs. 18.0: GCC specs.), and fully
opened (MAX HOT) at the set temperature MAX HOT (29.0: European (L.H.D. U.K.) specs. 32.0: GCC specs.).
.
1 Ambient temperature
2 MAX COLD
• If the air mi door locks and the target air mi actuator opening angle is not reached within 20 seconds, the air
mi actuator drive signal is stopped to prevent burning the motor.
End Of Sie
AIRFLOW VOLUME CONTROL
• Airflow volume is controlled by the power MOS FET so that the passenger compartment temperature remains
at the target temperature (control computation value T2).
• Control computation value T2 is the target temperature in the cabin set by the climate control unit based on
differences between set temperature and input temperature from the sensors.
.
1 Fan switch
2 Set temperature
3 Airflow mode
4 Ambient temperature
5 Cabin temperature
6 Sunlight intensity
7 Coolant temperature
8 Signals
U–26
CONTROL SYSTEM
3 MAX HOT
9 Climate control unit
10 Output
11 Feedback
12 Power MOS FET
13 Operation
14 Blower motor
15 Airflow volume changes
A6E8540T003
A6E854001044T05
A6E8540T043