Self-diagnosis System
1.Description
In the self-diagnosis system, the ECU transmits any abnormality that occurs in the indicator, sensors, and actuator to the control panel for display to notify the (more…)
Self-diagnosis System
1.Description
In the self-diagnosis system, the ECU transmits any abnormality that occurs in the indicator, sensors, and actuator to the control panel for display to notify the (more…)
1.What is TAO?
In order to speedily adjust the interior temperature to the set temperature, the ECU calculates the outlet air temperature (Temperature Air Outlet, TAO) based on the temperature information (more…)
1.Individual A/C control for left and right
In some models, the temperature and airflow control can be performed based on individual temperature setting of driver’s side and front passenger side.
The (more…)
1.Control
When the airflow mode is set at FOOT or BI-LEVEL and blower speed selector is set at AUTO, the blower speed is controlled based on the coolant temperature.
(1)When the coolant temperature is (more…)
1.Description
Air inlet control normally introduces exterior air. When the gap between the interior temperature and the set temperature is large, the air inlet control automatically switches to the interior (more…)
1.Air mix servomotor
(1)Construction
The air mix servomotor consists of the motor, limiter, potentiometer and moving contact, etc., as shown in the figure and it is activated by the signal from the ECU.
(2)Operation
When (more…)
1.Interior temperature sensor
(1)Construction
The interior temperature sensor uses the thermistor and is installed in the instrument panel with the aspirator. The aspirator utilizes the air blown from (more…)
Outline
1. Auto A/C (Air Conditioner) System
The auto A/C system is activated by setting the desired temperature with the temperature selector and pressing the AUTO switch. The system immediately (more…)
1.Description
For cooling performance of the A/C, measure the difference of temperature between the inlet port and outlet port of the air, and judge whether the value is within the standard range in the (more…)
1.Normal
If the refrigeration cycle is normal, the gauge pressure values are as shown.
Low-pressure side
0.15 to 0.25 MPa (1.5 to 2.5 kgf/cm