Mazda 626 - Full-Auto Air Conditioner Control System

FULL-AUTO AIR CONDITIONER CONTROL SYSTEM
FULL-AUTO AIR CONDITIONER CONTROL SYSTEM
O U T L IN E O F C O N T R O L S Y S T E M
• In the full-auto air conditioner system, the climate control unit carries out five basic types of control based on
signals from various sensors and control signals from the climate control unit. The climate control unit also has
three supplementary functions.
Basic control Control description Correction
Airflow temperature control Airflow temperature automatic
control
• Cabin temperature correction
• Air intake correction
• A/C correction
• MAX HOT and MAX COLD correction
• Air mix actuator opening angle regulation
• Coolant temperature correction (RF Turbo only)
• Fail-safe function
Airflow volume control
Airflow volume automatic
control
• Coolant temperature correction (warm-up correction)
• Mild start correction
• MAX HOT and MAX COLD correction
• Windshield mist prevention correction
• Airflow volume regulation
• Start compensation correction
• Defroster correction
• Fail-safe function
Airflow volume manual control • Defroster correction
• Fail-safe function
Airflow mode control Airflow mode automatic control • Coolant temperature correction
• Ambient temperature correction
• Fail-safe function
Airflow mode manual control
• Fail-safe function
Air intake control Air intake automatic control • MAX COLD correction
• Defroster correction
Air intake manual control • Defroster correction
A/C compressor control A/C compressor automatic
control
• Defroster correction
• Ambient temperature correction
• Windshield mist prevention correction
• MAX HOT and MAX COLD correction
A/C compressor manual control • Defroster correction
• Ambient temperature correction
• Windshield mist prevention correction
Supplementary function
Sensor fail-safe function
Sensor signal delay function
On-board diagnostic function
U-7