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 on the signal from the climate control unit and moves the mode door to the VENT, BI-LEVEL, HEAT, DEF/HEAT, or DEFROSTER position.
Door position detection function
The airflow mode actuator detects the changes in the mode door position using the potentiometer in conjunction with the motor drive and gives feedback to the climate control unit based on the electric signals.
Construction
A potentiometer-type airflow mode actuator has been adopted.
The airflow mode actuator is installed to the passenger's side in the A/C unit.
Operation
1. The climate control unit determines the airflow mode actuator target voltage based on the mode position determined by the airflow mode control.
2. The climate control unit compares the voltage detected by the potentiometer in the airflow mode actuator with the target voltage.
3. When the voltage detected by the potentiometer differs from the target voltage, the climate control unit outputs a motor drive signal.
4. When the voltage detected by the potentiometer is equal to the target voltage, the climate control unit stops the motor drive signal to the airflow mode actuator.
Fail-safe
Function not equipped.
Climate Control Unit Inspection [Full Auto Air Conditioner]
1. Remove the climate control unit with the connector connected..
2. Switch the ignition ON (engine off or on).
3. Connect the negative (-) lead of the tester to body ground.
4. By inserting the positive (+) lead of the tester into each climate control
unit terminal, measure the voltage acco ...
Hydraulic Lash Adjuster (Hla) Removal/Installation
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
If the camshaft is rotated with the timing chain removed and the piston at
the top dead center position, the valve may contact the piston and the engine ...
Start Stop Unit
Purpose
Performs control of several systems based on input/output signals from switches.
Function
The start stop unit controls systems based on the input/output signals.
The functions which are controlled are as follows:
Control Table
Control ...