Transfer System Ecu Power Source Circuit

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Jf2A Transfer 4Wd Awd. Land Cruiser. Urj200, 202 Grj200 Vdj200

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT BATTERY

CHECK HARNESS AND CONNECTOR (+B AND IG TERMINAL)

CHECK HARNESS AND CONNECTOR (GND TERMINAL)

TRANSFER SYSTEM - ECU Power Source Circuit


WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System.Transfer System Ecu Power Source Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.INSPECT BATTERY

  1. Check the battery voltage.

    Standard voltage:
    11 to 14 V

    Result:

    Result
    		Proceed to
    OK
    		A
    NG
    		for 1GR-FE
    		B
    for 1VD-FTV
    		C
    for 1UR-FE
    		D
    for 3UR-FE
    		E


B
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (Click here)

C
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (Click here)

D
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (Click here)

E
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (Click here)
A


2.CHECK HARNESS AND CONNECTOR (+B AND IG TERMINAL)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System.Transfer System Ecu Power Source Circuit

  1. Turn the ignition switch off.

  1. Disconnect the A27 and A28 4 wheel drive control ECU connectors.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A27-21 (+B) - Body ground
    		Always
    		11 to 14 V
    A28-4 (IG) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to 4 Wheel Drive Control ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (+B AND IG CIRCUIT)
OK


3.CHECK HARNESS AND CONNECTOR (GND TERMINAL)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System.Transfer System Ecu Power Source Circuit

  1. Turn the ignition switch off.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A28-10 (GND) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to 4 Wheel Drive Control ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)