Air Conditioning System (For Automatic Air Conditioning System) Cooling Box Magnetic Valve Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY - BATTERY)

CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY - BODY GROUND)

CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY

CHECK COOLER MAGNET VALVE ASSEMBLY

AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) - Cooling Box Magnetic Valve Circuit


DESCRIPTION

The cooler expansion valve (cooler magnet valve) is controlled by the air conditioning amplifier assembly (for cool box).

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Cooling Box Magnetic Valve Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY - BATTERY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Cooling Box Magnetic Valve Circuit

  1. Disconnect the No. 1 cooler wiring harness sub-assembly connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - Body ground
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to No. 1 Cooler Wiring Harness Sub-assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY - BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Cooling Box Magnetic Valve Circuit

  1. Disconnect the No. 1 cooler wiring harness sub-assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    6 - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to No. 1 Cooler Wiring Harness Sub-assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY

  1. Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal.

    OK:
    Same problem does not occur.


NG
Go to step 4
OK

REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY

4.CHECK COOLER MAGNET VALVE ASSEMBLY

  1. Replace the cooler magnet valve assembly (Click here).

    HINT:
    Since the cooler magnet valve cannot be inspected while it is removed from the vehicle, replace the cooler magnet valve with a normal one and check that the condition returns to normal.
    OK:
    Same problem does not occur.


NG
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box) (Click here)
OK

REPLACE COOLER MAGNET VALVE ASSEMBLY (Click here)