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SYSTEM HAC-25 < SYSTEM DESCRIPTION > [AUTOMATIC AIR CONDITIONING] C D E F G H J K L M A B HAC N O P FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Temperature Control INFOID:0000000009176789 • When ignition switch is in the ON position, A/C auto amp. always automatically controls temperature regardless of front air condi- tioning operational state. • A/C auto amp. calculates the target air mix door (front) opening angle depending on set temperature, in-vehicle temperature, ambi- ent temperature, and sunload. • Air mix door (front) is controlled depending on the comparison of current air mix door (front) opening angle and target air mix door (front) opening angle. • Regardless of in-vehicle temperature, ambient temperature, and sunload, air mix door (front) is fixed at the fully cold position when set temperature is 18.0 °C (60°F), and at the fully hot position when set temperature is 32.0 °C (90°F). FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Fail-safe INFOID:0000000009176790 FAIL-SAFE FUNCTION If a communication error exists between the A/C auto amp., and the AV control unit and preset switch for 30 seconds or longer, air conditioning is controlled under the following conditions: When ambient temperature is less than 3 °C (37°F) and engine coolant temperature is less than 56°C (133°F) When ambient temperature is 3 °C (37°F) or more, or engine coolant temperature is 56°C (133°F) or more REAR AUTOMATIC AIR CONDITIONING SYSTEM Discharge air flow MODE/DEF set position Condition Air outlet/distribution Ventilator Foot Defroster Center Side Front Rear DUAL switch: 50% 50% — — 26% 30% 30% 14% — — 14% 40% 16.5% 29.5% — 14% 35% 16% 35% — 12% — 88% JMIIA0731GB Compressor : ON Air outlet : DEF Air inlet : FRE (Fresh air intake) Blower fan speed : AUTO Set temperature : Setting before communication error occurs Compressor : ON Air outlet : AUTO Air inlet : 20% FRE (20% fresh air intake) Blower fan speed : AUTO Set temperature : Setting before communication error occurs |