Air Conditioning System (For Automatic Air Conditioning System) Ig Power Source Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (ECU-IG NO. 2)

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND)

AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) - IG Power Source Circuit


DESCRIPTION

The main power source is supplied to the air conditioning amplifier assembly when the engine switch is on (IG). The power source is used for operating the air conditioning amplifier assembly and servo motor, etc.

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) Ig Power Source Circuit


INSPECTION PROCEDURE

HINT:
Start the engine before inspection. Check the relay or battery if the entry and start system does not start.
1.INSPECT FUSE (ECU-IG NO. 2)

  1. Remove the ECU-IG NO. 2 fuse from the cowl side junction block LH.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    ECU-IG NO. 2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND 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) Ig Power Source Circuit

  1. w/ Rear Heater

    1. Disconnect the E35 and E36 amplifier connectors.

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

      Standard Voltage:
      Tester Connection
      		Switch Condition
      		Specified Condition
      E36-5 (IG+) - Body ground
      		Engine switch off
      		Below 1 V
      Engine switch on (IG)
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      E36-1 (GND) - Body ground
      		Always
      		Below 1 Ω
      E36-2 (E1) - Body ground
      E35-6 (E2) - 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) Ig Power Source Circuit

  1. w/o Rear Heater

    1. Disconnect the E81 amplifier connector.

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

      Standard Voltage:
      Tester Connection
      		Switch Condition
      		Specified Condition
      E81-1 (IG+) - Body ground
      		Engine switch off
      		Below 1 V
      Engine switch on (IG)
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      E81-14 (GND) - Body ground
      		Always
      		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)