Description & Inspection
INSPECTION AND ADJUSTMENT
Description & Inspection
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
Conditions: Engine running at normal operating temperature
INSPECTION PROCEDURE
1. CHECK MEMORY FUNCTION
1.Turn the ignition switch ON.
2.Turn temperature control dial (driver side) clockwise until 32�C (90�F) is displayed.
3.Press the OFF switch.
4.Turn the ignition switch OFF.
5.Turn the ignition switch ON.
6.Press the AUTO switch.
7.Check that the temperature setting before turning the ignition switch OFF is stored.
Is the inspection result normal?
YES- GO TO 2.
NO- Memory function malfunction: Inspection Procedure.
2. CHECK THE BLOWER MOTOR SPEED
1.Start the engine.
2.Press fan (UP:+) switch. Check that the fan speed changes. Check the operation for all fan speeds.
3.Set the fan speed to max speed.
Is the inspection result normal?
YES- GO TO 3.
NO- Blower motor system malfunction: Blower Motor.
3. CHECK DISCHARGE AIR
1.Press the MODE switch and the DEF switch.
2.Check that the air outlets change according to each indicated air outlet by placing a hand in front of the outlets. Air Distribution.
Is the inspection result normal?
YES-1- GO TO 4. (WITHOUT ACCS)
YES-2- GO TO 5. (WITH ACCS)
NO- Mode door system malfunction: Mode Door Motor.
4. CHECK INTAKE AIR (WITHOUT ACCS)
1.Press intake switch. REC indicator turns ON.
2.Press intake switch again. FRE indicator turns ON.
3.Listen for intake door position change. (Slight change of blower sound can be heard.)
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
FRE when D/F or DEF is selected.
Is the inspection result normal?
YES- GO TO 6.
NO- Intake door system malfunction: Intake Door Motor.
5. CHECK INTAKE AIR (WITH ACCS)
1.Press AUTO switch. AUTO INTAKE indicator and REC indicator turns ON (auto intake mode).
2.Press intake switch. AUTO INTAKE indicator and REC indicator turns OFF (fixed FRE mode).
3.Press intake switch again. REC indicator turns ON (fixed REC mode).
4.Press intake switch again. AUTO INTAKE indicator and REC indicator turns ON (auto intake mode).
5.Listen for intake door position change. (Slight change of blower sound can be heard.)
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and the intake door position is at
FRE when D/F or DEF is selected.
Is the inspection result normal?
YES- GO TO 6.
NO- Intake door system malfunction: Intake Door Motor.
6. CHECK A/C SWITCH
1.Press the A/C switch.
2.A/C switch indicator turns ON.
Confirm that the compressor clutch engages (sound or visual inspection).
Is the inspection result normal?
YES- GO TO 7.
NO- Magnet clutch system malfunction: Blower Motor.
7. CHECK WITH TEMPERATURE SETTING LOWERED
1.Turn temperature control dial (driver side) counterclockwise until 18�C (60�F) is displayed.
2.Check that the cool air blows from the outlets.
Is the inspection result normal?
YES- GO TO 8.
NO- Insufficient cooling: Insufficient Cooling.
8. CHECK WITH TEMPERATURE SETTING RAISED
1.Turn temperature control dial (driver side) clockwise until 32�C (90�F) is displayed.
2.Check that the warm air blows from the outlets.
Is the inspection result normal?
YES- GO TO 9.
NO- Insufficient heating: Insufficient Heating.
9. CHECK LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM FUNCTION
1.Press the DUAL switch, and then check that "DUAL" is shown on the display.
2.Operate temperature control dial (driver side). Check that the discharge air temperature (driver side)
changes.
3.Operate the temperature control dial (passenger side). Check that the discharge air temperature (passenger side) changes.
4.Press the DUAL switch, and then check that the temperature setting (LH/RH) is unified to the driver side temperature setting.
Is the inspection result normal?
YES- GO TO 10.
NO- Diagnosis Chart By Symptom and perform the appropriate diagnosis.
10. CHECK AUTO MODE
1.Press the AUTO switch, and then check that "AUTO" is shown on the display.
2.Check that the discharge air and blower speed depend on ambient temperature, in-vehicle temperature and temperature setting.
Is the inspection result normal?
YES-1- INSPECTION END (WITHOUT ACCS)
YES-2- GO TO 11. (WITH ACCS)
NO- Diagnosis Chart By Symptom and perform the appropriate diagnosis.
11. CHECK PLASMACLUSTER ION CONTROL FUNCTION (WITH ACCS)
1.Turn ignition switch OFF and restart the engine.
2.Ion indicator (blue) is shown on the display.
3.Press OFF switch.
4.Ion indicator is turned OFF.
Is the inspection result normal?
YES- GO TO 12.
NO- Testing and Inspection.
12. CHECK ION CONTROL MODE (WITH ACCS)
1.Turn ignition switch OFF and restart the engine.
2.Operate fan control dial to the blower fan lowest speed and highest speed. Check display of ion indicator each time blower fan is at lowest and at highest speed.
When blower fan speed is at lowest speed:CLEAN
When blower fan speed is at highest speed:QUICK CLEAN
Is the inspection result normal?
YES- INSPECTION END
NO- Replace unified meter and A/C amp.