Air Conditioning System (For Automatic Air Conditioning System) Problem Symptoms Table

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Heating Air Conditioning. Land Cruiser. Urj200, 202 Grj200 Vdj200

Air Conditioning System (For Automatic Air Conditioning System) -- Problem Symptoms Table


NOTICE:
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Air Conditioning Unit Assembly
Symptom
Suspected Area
See page
All functions of air conditioning system do not operate
Harness or connector
-
IG power source circuit
Click here
Back-up power source circuit
Click here
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
LIN communication system*1
Click here
Air conditioning control assembly*1
Click here
Navigation system*2
Click here
Multi-display assembly*2
Click here
Multi-media module receiver assembly*2
Click here
Air conditioning amplifier assembly
Click here
Switch operation of air conditioning control assembly is not accepted*1
Harness or connector
-
LIN communication system
Click here
Air conditioning control assembly
Click here
Air conditioning amplifier assembly
Click here
Switch operation of multi-media module receiver assembly is not accepted*2
Harness or connector
-
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Navigation system
Click here
Multi-display assembly
Click here
Multi-media module receiver assembly
Click here
Air conditioning amplifier assembly
Click here
Switch operation of temperature control switch assembly is not accepted
Heater control switch circuit
Click here
Navigation system*2
Click here
Multi-media module receiver assembly*2
Click here
Air conditioning amplifier assembly
Click here
Harness or connector
-
Air Flow Control: No blower operation
Harness or connector
-
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air Flow Control: Insufficient air flow
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No cool air comes out
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Volume of refrigerant
Click here
Refrigerant pressure
Click here
Compressor lock sensor circuit
Click here
Air conditioning compressor magnet clutch circuit
Click here
Cooler compressor assembly (1GR-FE)
Click here
Cooler compressor assembly (1UR-FE)
Click here
Cooler compressor assembly (3UR-FE)
Click here
Cooler compressor assembly (1VD-FTV)
Click here
Pressure sensor circuit
Click here
Front air mix damper servo motor (for driver side) circuit
Click here
Front air mix damper servo motor (for driver side rear air flow) circuit
Click here
Front air mix damper servo motor (for front passenger side) circuit
Click here
Front air mix damper servo motor (for front passenger side rear air flow) circuit
Click here
Room temperature sensor circuit
Click here
Rear room temperature sensor circuit (for driver side)*4
Click here
Rear room temperature sensor circuit (for front passenger side)*4
Click here
Solar sensor circuit (for driver side)
Click here
Solar sensor circuit (for front passenger side)
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Air mix damper servo motor (for driver side) (for LHD)
Click here
Air mix damper servo motor (for driver side) (for RHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for RHD)
Click here
Air mix damper servo motor (for front passenger side) (for LHD)
Click here
Air mix damper servo motor (for front passenger side) (for RHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for RHD)
Click here
Air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No warm air comes out
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Front air mix damper servo motor (for driver side) circuit
Click here
Front air mix damper servo motor (for driver side rear air flow) circuit
Click here
Front air mix damper servo motor (for front passenger side) circuit
Click here
Front air mix damper servo motor (for front passenger side rear air flow) circuit
Click here
Room temperature sensor circuit
Click here
Rear room temperature sensor circuit (for driver side)*4
Click here
Rear room temperature sensor circuit (for front passenger side)*4
Click here
Solar sensor circuit (for driver side)
Click here
Solar sensor circuit (for front passenger side)
Click here
Ambient temperature sensor circuit
Click here
Air mix damper servo motor (for driver side) (for LHD)
Click here
Air mix damper servo motor (for driver side) (for RHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for RHD)
Click here
Air mix damper servo motor (for front passenger side) (for LHD)
Click here
Air mix damper servo motor (for front passenger side) (for RHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for RHD)
Click here
Air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: Output air is warmer or cooler than the set temperature or response is slow
Volume of refrigerant
Click here
Refrigerant pressure
Click here
Front air mix damper servo motor (for driver side) circuit
Click here
Front air mix damper servo motor (for driver side rear air flow) circuit
Click here
Front air mix damper servo motor (for front passenger side) circuit
Click here
Front air mix damper servo motor (for passenger side rear air flow) circuit
Click here
REC/FRS damper servo motor circuit
Click here
Cool air bypass damper servo motor circuit
Click here
Room temperature sensor circuit
Click here
Rear room temperature sensor circuit (for driver side)*4
Click here
Rear room temperature sensor circuit (for front passenger side)*4
Click here
Solar sensor circuit (for driver side)
Click here
Solar sensor circuit (for front passenger side)
Click here
Ambient temperature sensor circuit
Click here
Cooler compressor assembly (1GR-FE)
Click here
Cooler compressor assembly (1UR-FE)
Click here
Cooler compressor assembly (3UR-FE)
Click here
Cooler compressor assembly (1VD-FTV)
Click here
Heater radiator
-
Air mix damper servo motor (for driver side) (for LHD)
Click here
Air mix damper servo motor (for driver side) (for RHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for RHD)
Click here
Air mix damper servo motor (for front passenger side) (for LHD)
Click here
Air mix damper servo motor (for front passenger side) (for RHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for RHD)
Click here
REC/FRS damper servo motor (for LHD)
Click here
REC/FRS damper servo motor (for RHD)
Click here
Cool air bypass damper servo motor (for LHD)
Click here
Cool air bypass damper servo motor (for LHD)
Click here
Air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No temperature control (only Max. cool or Max. warm)
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Room temperature sensor circuit
Click here
Rear room temperature sensor circuit (for driver side)*4
Click here
Rear room temperature sensor circuit (for front passenger side)*4
Click here
Ambient temperature sensor circuit
Click here
Cool air bypass damper servo motor circuit
Click here
Front air mix damper servo motor (for driver side) circuit
Click here
Front air mix damper servo motor (for driver side rear air flow) circuit
Click here
Front air mix damper servo motor (for front passenger side) circuit
Click here
Front air mix damper servo motor (for front passenger side rear air flow) circuit
Click here
Air conditioning control assembly*1
Click here
Multi-display assembly*2
Click here
Multi-media module receiver assembly*2
Click here
Cool air bypass damper servo motor (for LHD)
Click here
Cool air bypass damper servo motor (for RHD)
Click here
Air mix damper servo motor (for driver side) (for LHD)
Click here
Air mix damper servo motor (for driver side) (for RHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for driver side rear air flow) (for RHD)
Click here
Air mix damper servo motor (for front passenger side) (for LHD)
Click here
Air mix damper servo motor (for front passenger side) (for RHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for LHD)
Click here
Front air mix damper servo motor (for front passenger side rear air flow) (for RHD)
Click here
Air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
PTC heater does not operate*3
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
PTC heater circuit
Click here
Air conditioning amplifier assembly
Click here
ECM (1GR-FE)
Click here
ECM (1UR-FE)
Click here
ECM (3UR-FE)
Click here
No airflow mode control
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Air outlet damper servo motor (for driver side mode) circuit
Click here
Air outlet damper servo motor (for front passenger side mode) circuit
Click here
Air outlet damper servo motor (for rear seat mode) circuit
Click here
Air outlet damper servo motor (for DEF mode) circuit*4, *5
Click here
Air outlet damper servo motor (for driver side mode) (for LHD)
Click here
Air outlet damper servo motor (for driver side mode) (for RHD)
Click here
Air outlet damper servo motor (for front passenger side mode) (for LHD)
Click here
Air outlet damper servo motor (for front passenger side mode) (for RHD)
Click here
Air outlet damper servo motor (for rear seat mode) (for LHD)
Click here
Air outlet damper servo motor (for rear seat mode) (for RHD)
Click here
Air outlet damper servo motor (for DEF mode) (for RHD)
Click here
Air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
Blinking of A/C indicator
Air conditioning control assembly*1
Click here
Multi-media module receiver assembly*2
Click here
Air conditioning amplifier assembly
Click here
LIN communication system*1
Click here
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Diagnostic trouble codes are not stored. Set mode is cleared when engine switch is turned off
Back-up power source circuit
Click here
Air conditioning amplifier assembly
Click here
  1. *1: w/o Navigation System
  2. *2: w/ Navigation System
  3. *3: w/ PTC Heater
  4. *4: for 4-ZONE Type
  5. *5: for RHD

Rear Cooling Unit Assembly (w/ Rear Heater)
Symptom
Suspected Area
See page
All functions of air conditioning system do not operate
Harness or connector
-
LIN communication system
Click here
IG power source circuit
Click here
Back-up power source circuit
Click here
No. 2 air conditioning control assembly
Click here
Air conditioning amplifier assembly
Click here
Switch operation of No. 2 air conditioning control assembly is not accepted
Harness or connector
-
LIN communication system
Click here
No. 2 air conditioning control assembly
Click here
Air conditioning amplifier assembly
Click here
Air Flow Control: No blower operation
Harness or connector
-
Rear blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air Flow Control: Insufficient air flow
Rear blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No cool air comes out
CAN communication system (for LHD)*
Click here
CAN communication system (for RHD)*
Click here
Volume of refrigerant
Click here
Refrigerant pressure
Click here
Cooler compressor assembly (1GR-FE)
Click here
Cooler compressor assembly (1UR-FE)
Click here
Cooler compressor assembly (3UR-FE)
Click here
Cooler compressor assembly (1VD-FTV)
Click here
Pressure sensor circuit
Click here
Rear air mix damper servo motor (for driver side) circuit*
Click here
Rear air mix damper servo motor (for front passenger side) circuit*
Click here
Rear room temperature sensor (for driver side)*
Click here
Rear room temperature sensor (for front passenger side)*
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Rear evaporator temperature sensor circuit*
Click here
Rear magnetic valve circuit
Click here
Rear air mix damper servo motor LH
Click here
Rear air mix damper servo motor RH
Click here
No. 2 air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No warm air comes out*
CAN communication system (for LHD)
Click here
CAN communication system (for RHD)
Click here
Rear air mix damper servo motor (for driver side) circuit
Click here
Rear air mix damper servo motor (for front passenger side) circuit
Click here
Rear room temperature sensor (for driver side)
Click here
Rear room temperature sensor (for front passenger side)
Click here
Ambient temperature sensor circuit
Click here
Rear air mix damper servo motor LH
Click here
Rear air mix damper servo motor RH
Click here
No. 2 air conditioning harness assembly
Click here
Air duct temperature sensor (for driver side)
Click here
Air duct temperature sensor (for front passenger side)
Click here
Air conditioning amplifier assembly
Click here
  1. *: for 4-ZONE Type

Rear Cooling Unit Assembly (w/o Rear Heater)
Symptom
Suspected Area
See page
All functions of air conditioning system do not operate
Harness or connector
-
IG power source circuit
Click here
Back-up power source circuit
Click here
No. 2 air conditioning control assembly
Click here
Air conditioning amplifier assembly
Click here
Air Flow Control: No blower operation
Rear blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air Flow Control: Insufficient air flow
Rear blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Temperature Control: No cool air comes out
Volume of refrigerant
Click here
Refrigerant pressure
Click here
Cooler compressor assembly (1GR-FE)
Click here
Cooler compressor assembly (1UR-FE)
Click here
Cooler compressor assembly (3UR-FE)
Click here
Cooler compressor assembly (1VD-FTV)
Click here
Pressure sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Rear magnetic valve circuit
Click here
No. 2 air conditioning harness assembly
Click here
Air conditioning amplifier assembly
Click here

Cooling Box Assembly (w/ Cooling Box)
Symptom
Suspected Area
See page
Cooling box malfunction
Cooling box magnetic valve circuit
Click here
Cooling box blower motor circuit
Click here
Cooling box control switch circuit
Click here
Cooling box sensor circuit
Click here
Air conditioning amplifier assembly (for cool box)
-
No. 1 cooler wiring harness sub-assembly
-
Noise filter (built into cooling box unit)
-