Automatic Air Conditioner

INSPECTION AND ADJUSTMENT


Operational Check

The purpose of the operational check is to confirm that the system operates properly.






CHECKING MEMORY FUNCTION
1. Set the temperature to 32� (90�F).
2. Press the OFF switch.
3. Turn ignition switch OFF.
4. Turn ignition switch ON.
5. Press the AUTO switch.
6. Confirm that the set temperature remains at previous temperature.
7. Press the OFF switch.
If NG, go to trouble diagnosis procedure for Memory Function Does Not Operate.
If OK, continue with next check.

CHECKING BLOWER
1. Rotate the blower control dial clockwise once, blower should operate on low speed.
2. Rotate the blower control dial again, and continue checking blower speed until all speeds are checked.
3. Leave blower on maximum speed.
If NG, go to trouble diagnosis procedure for Diagnosis Procedure.
If OK, continue with next check.

CHECKING DISCHARGE AIR





1. Press each MODE switch and the DEF switch.
2. Each MODE position indicator should illuminate.
3. Confirm that discharge air comes out according to the air distribution table. Discharge Air Flow, "Discharge
Air Flow".
Mode door position is checked in the next step.
If NG, go to trouble diagnosis procedure for Diagnosis Procedure.
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at fresh when the DEF or D/F is selected.





CHECKING RECIRCULATION ( ONLY)
1. Press recirculation ( ) switch one time. Recirculation indicator should illuminate.
2. Press recirculation ( ) switch one more time. Recirculation indicator should go off.
3. Listen for intake door position change (blower sound should change slightly).
If NG, go to trouble diagnosis procedure for Intake Door Motor.
If OK, continue the check.




NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at fresh when the DEF or D/F is selected. REC ( ) is not allowed in DEF ( ) D/F ( ) or FOOT ( ).

CHECKING TEMPERATURE DECREASE
1. Rotate temperature control dial (drive or passenger) counterclockwise until 18�C (60�F) is displayed.
2. Check for cold air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to trouble diagnosis procedure for Insufficient Cooling, Air Mix Door Motor (Driver) Component Function Check Air Mix Door Motor (Driver), "Air Mix Door
Motor (Driver) Component Function Check".
If OK, continue the check.

CHECKING TEMPERATURE INCREASE
1. Rotate temperature control dial clockwise (drive or passenger) until 32�C (90�F) is displayed.
2. Check for hot air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to trouble diagnosis procedure for Insufficient Heating, Air Mix Door Motor (Driver) Component Function Check Air Mix Door Motor (Driver), "Air Mix Door
Motor (Driver) Component Function Check".
If OK, continue with next check.

CHECK A/C SWITCH
1. Press A/C switch when AUTO switch is ON, or in manual mode.
2. A/C switch indicator will turn ON.
- Confirm that the compressor clutch engages (sound or visual inspection).
NOTE:
If current mode setting is DEF or D/F, compressor clutch will already be engaged and cannot be turned off.
If NG, go to trouble diagnosis procedure for Diagnosis Procedure.
If OK, continue with next check.

CHECKING AUTO MODE
1. Press AUTO switch.
2. AUTO indicator should illuminate.
- If ambient temperature is warm, and selected temperature is cool, confirm that the compressor clutch engages (sound or visual inspection). (Discharge air and blower speed will depend on ambient, in-vehicle, and set temperatures.)
If NG, go to trouble diagnosis procedure for Power Supply And Ground Circuit For Controller Component Function Check Diagnosis Procedure, "Front Air Control Power and Ground Diagnosis
Magnetic Clutch Component Function Check Diagnosis Procedure, "Magnet Clutch Diagnosis Procedure".
If all operational checks are OK (symptom cannot be duplicated), go to malfunction Simulation Tests in
Automatic Air Conditioner and perform tests as outlined to simulate driving conditions environment. If symptom appears. Inlet Port Memory Function (Rec) Without 7 Inch Display, "Symptom Matrix Chart", and perform applicable trouble diagnosis procedures.