Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - HEATING / AIR CONDITIONING
AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) - PROBLEM SYMPTOMS TABLE
- 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
| All functions of the air conditioning system do not operate | Proceed to "IG Power Source Circuit" | |
| Proceed to "Air Conditioning Control Panel Circuit" | ||
| Air Flow Control: No blower operation | Proceed to "Blower Motor Circuit" | |
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: No blower control | Proceed to "Blower Motor Circuit" | |
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Air Flow Control: Insufficient air flow | Proceed to "Blower Motor Circuit" | |
| Temperature Control: No cool air comes out | Proceed to "CAN Communication System (for LHD)" | |
| Proceed to "CAN Communication System (for RHD)" | ||
| Check volume of refrigerant | ||
| Check for refrigerant gas leak | ||
| Proceed to "Pressure Sensor Circuit" | ||
| Proceed to "Compressor Lock Sensor Circuit" | ||
| Proceed to "Air Mix Damper Control Servo Motor Circuit (Driver Side)" | ||
| Proceed to "Cool Air Bypass Damper Control" | ||
| Proceed to "Ambient Temperature Sensor Circuit" | ||
| Proceed to "Evaporator Temperature Sensor Circuit" | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for RHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for RHD) | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Cooler expansion valve (for LHD) | ||
| Cooler expansion valve (for RHD) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1GR-FE) | ||
| Temperature Control: No warm air comes out | Proceed to "CAN Communication System (for LHD)" | |
| Proceed to "CAN Communication System (for RHD)" | ||
| Proceed to "Air Mix Damper Control Servo Motor Circuit (Driver Side)" | ||
| Proceed to "Cool Air Bypass Damper Control" | ||
| Proceed to "Ambient Temperature Sensor Circuit" | ||
| Proceed to "PTC Heater Circuit" (w/ PTC Heater) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for RHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for RHD) | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Heater radiator unit sub-assembly (for LHD) | ||
| Heater radiator unit sub-assembly (for RHD) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1GR-FE) | ||
| Temperature Control: Output air is warmer or cooler than set temperature or response is slow | Proceed to "CAN Communication System (for LHD)" | |
| Proceed to "CAN Communication System (for RHD)" | ||
| Check volume of refrigerant | ||
| Check for refrigerant gas leak | ||
| Proceed to "Pressure Sensor Circuit" | ||
| Proceed to "Compressor Lock Sensor Circuit" | ||
| Proceed to "Air Mix Damper Control Servo Motor Circuit (Driver Side)" | ||
| Proceed to "Cool Air Bypass Damper Control" | ||
| Proceed to "Air Inlet Damper Control Servo Motor Circuit" | ||
| Proceed to "Ambient Temperature Sensor Circuit" | ||
| Proceed to "Evaporator Temperature Sensor Circuit" | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for RHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for RHD) | ||
| No. 1 blower damper servo sub-assembly | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| Cooler expansion valve (for LHD) | ||
| Cooler expansion valve (for RHD) | ||
| Heater radiator unit sub-assembly (for LHD) | ||
| Heater radiator unit sub-assembly (for RHD) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1GR-FE) | ||
| Temperature Control: No temperature control (only MAX. COOL or MAX. HOT) | Proceed to "CAN Communication System (for LHD)" | |
| Proceed to "CAN Communication System (for RHD)" | ||
| Proceed to "Air Mix Damper Control Servo Motor Circuit (Driver Side)" | ||
| Proceed to "Cool Air Bypass Damper Control" | ||
| Proceed to "Ambient Temperature Sensor Circuit" | ||
| Proceed to "Evaporator Temperature Sensor Circuit" | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) (for RHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for LHD) | ||
| No. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) (for RHD) | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1GR-FE) | ||
| No air inlet control | Proceed to "Air Inlet Damper Control Servo Motor Circuit" | |
| No. 1 blower damper servo sub-assembly | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| No air flow mode control | Proceed to "Air Outlet Damper Control Servo Motor Circuit" | |
| No. 1 blower damper servo sub-assembly (for LHD) | ||
| No. 1 blower damper servo sub-assembly (for RHD) | ||
| Air conditioning harness assembly (for LHD) | ||
| Air conditioning harness assembly (for RHD) | ||
| Air conditioning control assembly | ||
| Air conditioning amplifier assembly | ||
| PTC heater does not operate (w/ PTC Heater) | Proceed to "PTC Heater Circuit" | |
| Proceed to "CAN Communication System (for LHD)" | ||
| Air conditioning amplifier assembly | ||
| ECM | ||
| Engine idle up does not occur or is continuous | Proceed to "CAN Communication System (for LHD)" | |
| Proceed to "CAN Communication System (for RHD)" | ||
| Proceed to "Compressor Lock Sensor Circuit" | ||
| Air conditioning amplifier assembly | ||
| Proceed to "ECD System (for 1VD-FTV)" | ||
| Proceed to "SFI System (for 1GR-FE)" | ||
| Blinking of air conditioning switch indicator | Air conditioning amplifier assembly | |
| Diagnostic trouble codes are not stored, and set mode is cleared when ignition switch is off | Proceed to "Back-up Power Source Circuit" | |
| Air conditioning amplifier assembly |