Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - HEATING / AIR CONDITIONING
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.
| Symptom | Suspected Area | See page |
| All functions of air conditioning system do not operate | Harness or connector | - |
| IG power source circuit | ||
| Back-up power source circuit | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| LIN communication system*1 | ||
| Air conditioning control assembly*1 | ||
| Navigation system*2 | ||
| Multi-display assembly*2 | ||
| Multi-media module receiver assembly*2 | ||
| Air conditioning amplifier assembly | ||
| Switch operation of air conditioning control assembly is not accepted*1 | Harness or connector | - |
| LIN communication system | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Switch operation of multi-media module receiver assembly is not accepted*2 | Harness or connector | - |
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Navigation system | ||
| Multi-display assembly | ||
| Multi-media module receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Switch operation of temperature control switch assembly is not accepted | Heater control switch circuit | |
| Navigation system*2 | ||
| Multi-media module receiver assembly*2 | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Air Flow Control: No blower operation | Harness or connector | - |
| Blower motor circuit | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: Insufficient air flow | Blower motor circuit | |
| Air conditioning amplifier assembly | ||
| Temperature Control: No cool air comes out | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Volume of refrigerant | ||
| Refrigerant pressure | ||
| Compressor lock sensor circuit | ||
| Air conditioning compressor magnet clutch circuit | ||
| Cooler compressor assembly (1GR-FE) | ||
| Cooler compressor assembly (1UR-FE) | ||
| Cooler compressor assembly (3UR-FE) | ||
| Cooler compressor assembly (1VD-FTV) | ||
| Pressure sensor circuit | ||
| Front air mix damper servo motor (for driver side) circuit | ||
| Front air mix damper servo motor (for driver side rear air flow) circuit | ||
| Front air mix damper servo motor (for front passenger side) circuit | ||
| Front air mix damper servo motor (for front passenger side rear air flow) circuit | ||
| Room temperature sensor circuit | ||
| Rear room temperature sensor circuit (for driver side)*4 | ||
| Rear room temperature sensor circuit (for front passenger side)*4 | ||
| Solar sensor circuit (for driver side) | ||
| Solar sensor circuit (for front passenger side) | ||
| Ambient temperature sensor circuit | ||
| Evaporator temperature sensor circuit | ||
| Air mix damper servo motor (for driver side) (for LHD) | ||
| Air mix damper servo motor (for driver side) (for RHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for RHD) | ||
| Air mix damper servo motor (for front passenger side) (for LHD) | ||
| Air mix damper servo motor (for front passenger side) (for RHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for RHD) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature Control: No warm air comes out | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Front air mix damper servo motor (for driver side) circuit | ||
| Front air mix damper servo motor (for driver side rear air flow) circuit | ||
| Front air mix damper servo motor (for front passenger side) circuit | ||
| Front air mix damper servo motor (for front passenger side rear air flow) circuit | ||
| Room temperature sensor circuit | ||
| Rear room temperature sensor circuit (for driver side)*4 | ||
| Rear room temperature sensor circuit (for front passenger side)*4 | ||
| Solar sensor circuit (for driver side) | ||
| Solar sensor circuit (for front passenger side) | ||
| Ambient temperature sensor circuit | ||
| Air mix damper servo motor (for driver side) (for LHD) | ||
| Air mix damper servo motor (for driver side) (for RHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for RHD) | ||
| Air mix damper servo motor (for front passenger side) (for LHD) | ||
| Air mix damper servo motor (for front passenger side) (for RHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for RHD) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature Control: Output air is warmer or cooler than the set temperature or response is slow | Volume of refrigerant | |
| Refrigerant pressure | ||
| Front air mix damper servo motor (for driver side) circuit | ||
| Front air mix damper servo motor (for driver side rear air flow) circuit | ||
| Front air mix damper servo motor (for front passenger side) circuit | ||
| Front air mix damper servo motor (for passenger side rear air flow) circuit | ||
| REC/FRS damper servo motor circuit | ||
| Cool air bypass damper servo motor circuit | ||
| Room temperature sensor circuit | ||
| Rear room temperature sensor circuit (for driver side)*4 | ||
| Rear room temperature sensor circuit (for front passenger side)*4 | ||
| Solar sensor circuit (for driver side) | ||
| Solar sensor circuit (for front passenger side) | ||
| Ambient temperature sensor circuit | ||
| Cooler compressor assembly (1GR-FE) | ||
| Cooler compressor assembly (1UR-FE) | ||
| Cooler compressor assembly (3UR-FE) | ||
| Cooler compressor assembly (1VD-FTV) | ||
| Heater radiator | - | |
| Air mix damper servo motor (for driver side) (for LHD) | ||
| Air mix damper servo motor (for driver side) (for RHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for RHD) | ||
| Air mix damper servo motor (for front passenger side) (for LHD) | ||
| Air mix damper servo motor (for front passenger side) (for RHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for RHD) | ||
| REC/FRS damper servo motor (for LHD) | ||
| REC/FRS damper servo motor (for RHD) | ||
| Cool air bypass damper servo motor (for LHD) | ||
| Cool air bypass damper servo motor (for LHD) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature Control: No temperature control (only Max. cool or Max. warm) | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Room temperature sensor circuit | ||
| Rear room temperature sensor circuit (for driver side)*4 | ||
| Rear room temperature sensor circuit (for front passenger side)*4 | ||
| Ambient temperature sensor circuit | ||
| Cool air bypass damper servo motor circuit | ||
| Front air mix damper servo motor (for driver side) circuit | ||
| Front air mix damper servo motor (for driver side rear air flow) circuit | ||
| Front air mix damper servo motor (for front passenger side) circuit | ||
| Front air mix damper servo motor (for front passenger side rear air flow) circuit | ||
| Air conditioning control assembly*1 | ||
| Multi-display assembly*2 | ||
| Multi-media module receiver assembly*2 | ||
| Cool air bypass damper servo motor (for LHD) | ||
| Cool air bypass damper servo motor (for RHD) | ||
| Air mix damper servo motor (for driver side) (for LHD) | ||
| Air mix damper servo motor (for driver side) (for RHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for driver side rear air flow) (for RHD) | ||
| Air mix damper servo motor (for front passenger side) (for LHD) | ||
| Air mix damper servo motor (for front passenger side) (for RHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for LHD) | ||
| Front air mix damper servo motor (for front passenger side rear air flow) (for RHD) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| PTC heater does not operate*3 | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| PTC heater circuit | ||
| Air conditioning amplifier assembly | ||
| ECM (1GR-FE) | ||
| ECM (1UR-FE) | ||
| ECM (3UR-FE) | ||
| No airflow mode control | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Air outlet damper servo motor (for driver side mode) circuit | ||
| Air outlet damper servo motor (for front passenger side mode) circuit | ||
| Air outlet damper servo motor (for rear seat mode) circuit | ||
| Air outlet damper servo motor (for DEF mode) circuit*4, *5 | ||
| Air outlet damper servo motor (for driver side mode) (for LHD) | ||
| Air outlet damper servo motor (for driver side mode) (for RHD) | ||
| Air outlet damper servo motor (for front passenger side mode) (for LHD) | ||
| Air outlet damper servo motor (for front passenger side mode) (for RHD) | ||
| Air outlet damper servo motor (for rear seat mode) (for LHD) | ||
| Air outlet damper servo motor (for rear seat mode) (for RHD) | ||
| Air outlet damper servo motor (for DEF mode) (for RHD) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Blinking of A/C indicator | Air conditioning control assembly*1 | |
| Multi-media module receiver assembly*2 | ||
| Air conditioning amplifier assembly | ||
| LIN communication system*1 | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Diagnostic trouble codes are not stored. Set mode is cleared when engine switch is turned off | Back-up power source circuit | |
| Air conditioning amplifier assembly |
*1: w/o Navigation System
*2: w/ Navigation System
*3: w/ PTC Heater
*4: for 4-ZONE Type
*5: for RHD
| Symptom | Suspected Area | See page |
| All functions of air conditioning system do not operate | Harness or connector | - |
| LIN communication system | ||
| IG power source circuit | ||
| Back-up power source circuit | ||
| No. 2 air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Switch operation of No. 2 air conditioning control assembly is not accepted | Harness or connector | - |
| LIN communication system | ||
| No. 2 air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: No blower operation | Harness or connector | - |
| Rear blower motor circuit | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: Insufficient air flow | Rear blower motor circuit | |
| Air conditioning amplifier assembly | ||
| Temperature Control: No cool air comes out | CAN communication system (for LHD)* | |
| CAN communication system (for RHD)* | ||
| Volume of refrigerant | ||
| Refrigerant pressure | ||
| Cooler compressor assembly (1GR-FE) | ||
| Cooler compressor assembly (1UR-FE) | ||
| Cooler compressor assembly (3UR-FE) | ||
| Cooler compressor assembly (1VD-FTV) | ||
| Pressure sensor circuit | ||
| Rear air mix damper servo motor (for driver side) circuit* | ||
| Rear air mix damper servo motor (for front passenger side) circuit* | ||
| Rear room temperature sensor (for driver side)* | ||
| Rear room temperature sensor (for front passenger side)* | ||
| Ambient temperature sensor circuit | ||
| Evaporator temperature sensor circuit | ||
| Rear evaporator temperature sensor circuit* | ||
| Rear magnetic valve circuit | ||
| Rear air mix damper servo motor LH | ||
| Rear air mix damper servo motor RH | ||
| No. 2 air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature Control: No warm air comes out* | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Rear air mix damper servo motor (for driver side) circuit | ||
| Rear air mix damper servo motor (for front passenger side) circuit | ||
| Rear room temperature sensor (for driver side) | ||
| Rear room temperature sensor (for front passenger side) | ||
| Ambient temperature sensor circuit | ||
| Rear air mix damper servo motor LH | ||
| Rear air mix damper servo motor RH | ||
| No. 2 air conditioning harness assembly | ||
| Air duct temperature sensor (for driver side) | ||
| Air duct temperature sensor (for front passenger side) | ||
| Air conditioning amplifier assembly |
*: for 4-ZONE Type
| Symptom | Suspected Area | See page |
| All functions of air conditioning system do not operate | Harness or connector | - |
| IG power source circuit | ||
| Back-up power source circuit | ||
| No. 2 air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: No blower operation | Rear blower motor circuit | |
| Air conditioning amplifier assembly | ||
| Air Flow Control: Insufficient air flow | Rear blower motor circuit | |
| Air conditioning amplifier assembly | ||
| Temperature Control: No cool air comes out | Volume of refrigerant | |
| Refrigerant pressure | ||
| Cooler compressor assembly (1GR-FE) | ||
| Cooler compressor assembly (1UR-FE) | ||
| Cooler compressor assembly (3UR-FE) | ||
| Cooler compressor assembly (1VD-FTV) | ||
| Pressure sensor circuit | ||
| Ambient temperature sensor circuit | ||
| Evaporator temperature sensor circuit | ||
| Rear magnetic valve circuit | ||
| No. 2 air conditioning harness assembly | ||
| Air conditioning amplifier assembly |
| Symptom | Suspected Area | See page |
| Cooling box malfunction | Cooling box magnetic valve circuit | |
| Cooling box blower motor circuit | ||
| Cooling box control switch circuit | ||
| Cooling box sensor circuit | ||
| Air conditioning amplifier assembly (for cool box) | - | |
| No. 1 cooler wiring harness sub-assembly | - | |
| Noise filter (built into cooling box unit) | - |