Air Conditioning System Problem Symptoms Table

Heater & Air Conditioning System. Lexus Gs430, Gs300. Uzs190 Grs190
Air Conditioning. Lexus Gs430, Gs300. Uzs190 Grs190

Air Conditioning System -- Problem Symptoms Table



Symptom
Suspected area
See page
All functions of A/C system do not operate
IG power source circuit
Click here
Back-up power source circuit
Click here
Airflow Control: No blower operation
IG power source circuit
Click here
Back-up power source circuit
Click here
Airflow Control: No blower control
Blower motor circuit
Click here
Room temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Driver side solar sensor circuit
Click here
Passenger side solar sensor circuit
Click here
Airflow Control: Insufficient air flow
Blower motor circuit
Click here
Temperature Control: No cool air comes out
Blower motor circuit
Click here
Pressure switch circuit
Click here
Low pressure switch circuit
Click here
Driver side air mix damper control servomotor circuit
Click here
Passenger side air mix damper control servomotor circuit
Click here
Room temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Compressor solenoid circuit
Click here
Back-up power source circuit
Click here
Temperature Control: No warm air comes out
Driver side air mix damper control servomotor circuit
Click here
Passenger side air mix damper control servomotor circuit
Click here
Room temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Compressor solenoid circuit
Click here
Air conditioning compressor magnetic clutch circuit
Click here
Pressure switch circuit
Click here
Low pressure switch circuit
Click here
Back-up power source circuit
Click here
Temperature Control: Output air is warmer or cooler than the set temperature or response is slow
Driver side air mix damper control servomotor circuit
Click here
Passenger side air mix damper control servomotor circuit
Click here
Cool air bypass damper control servomotor circuit
Click here
Room temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Driver side solar sensor circuit
Click here
Passenger side solar sensor circuit
Click here
Temperature Control: No temperature control (only Max. cool or Max. warm)
Driver side air mix damper control servomotor circuit
Click here
Passenger side air mix damper control servomotor circuit
Click here
Room temperature sensor circuit
Click here
Cool air bypass damper control servomotor circuit
Click here
Evaporator temperature sensor circuit
Click here
Driver side solar sensor circuit
Click here
Passenger side solar sensor circuit
Click here
No air inlet control
Air inlet damper control servomotor circuit
Click here
No airflow mode control
Air outlet damper control servomotor circuit
Click here
Back-up power source circuit
Click here
Blinking of A/C indicator
Compressor solenoid circuit
Click here
Diagnostic trouble codes are not recorded. Set mode is cleared when engine switch turned off.
Back-up power source circuit
Click here
Pollen reduction mode does not operate (A/C system is operating normally)
A/C amplifier
-
Multi-display
-