Without Navigation System

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

CONDITIONS:
Engine running at normal operating temperature.

PROCEDURE (Without navigation system):




1. Check blower
1. Press BLOWER switch (Up) one time. MANUAL should appear on the display. Blower should operate on low speed, and the fan symbol should have one blade lit.
2. Press BLOWER switch one more time.
3. Continue checking blower speed and fan symbol until all four speeds have been checked.
4. Leave blower on high speed.
5. Press BLOWER switch (Down) one time. Blower should operate in third speed.
6. Continue checking blower speed and fan symbol until all three speeds have been checked.

2. Check discharge air




1. Press each mode switch.




2. Confirm that discharge air comes out according to the air distribution table.
Refer to "Discharge Air Flow", "DESCRIPTION".

NOTE: Confirm that the compressor clutch is engaged (visual inspection) and intake door position is at FRESH when the DEF switch is pressed.
Confirm that the intake door position is at FRESH when the F/D switch is pressed.




3. Check ambient display
Press AMB switch.
Display should show the outside (ambient) temperature for approximately 5 seconds.




4. Check recirculation
1. Press RECIRCULATION switch.
Recirculation indicator should illuminate.
2. Listen for intake door position change (you should hear blower sound change slightly).




5. Check defroster
1. Press DEFROSTER switch.
2. Check that recirculation is canceled.
The discharge air should be coming only from the defrost vents.
3. Confirm that the compressor clutch is engaged (visual inspection).
The display should indicate AUTO, MANUAL, and defrost.




6. Check ECON mode
1. Press ECON switch once.
Defrost should be canceled.
Discharge air outlet will depend on ambient, in-vehicle, and set temperatures.
Confirm that the compressor clutch is engaged (visual inspection).
Display should indicate ECON, AUTO (no MANUAL).
2. Press ECON switch once more.
Display should indicate AUTO (not ECON).
Confirm that the compressor clutch is not engaged (visual inspection).




7. Check AUTO mode
1. Press AUTO switch.
2. Confirm that the compressor clutch engages (audio or visual inspection).
Display should indicate AUTO (no ECON, no MANUAL). (Discharge air will depend on ambient, in-vehicle, and set temperatures.)




8. Check temperature decrease and increase
1. Turn temperature switch counterclockwise until 18 °C (65 °F) is displayed.
2. Check for cold air at discharge air outlets.
3. Turn temperature switch clockwise until 32 °C (85 °F) is displayed.
4. Listen for changes in blower speed as set temperature changes.
5. Check for hot air at discharge air outlets.




9. Check memory function
1. Press OFF switch.
2. Turn the ignition switch OFF.
3. Wait 15 seconds.
4. Turn the ignition switch ON.
5. Press the AUTO switch.
6. Confirm that the set temperature remained at 32 °C (85 °F).




10. Check rear window defogger
1. Press rear window defogger switch.
Rear window defogger indicator should come ON.
If all operational check are OK (symptom can not be duplicated), go to "Incident Simulation Tests" and perform tests as outlined to simulate driving conditions environment. If symptom appears, refer to "Symptom Chart" and perform applicable trouble diagnosis procedures.