Power Steering System (W/ Vsc) Ig Power Source Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)

POWER STEERING SYSTEM (w/ VSC) - IG Power Source Circuit


DESCRIPTION

When the ignition switch is turned to ON, the IG power source circuit supplies positive (+) voltage to the power steering ECU.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Power Assist Systems.Power Steering System (W/ Vsc).Power Steering System (W/ Vsc)  Ig Power Source Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Power Assist Systems.Power Steering System (W/ Vsc).Power Steering System (W/ Vsc)  Ig Power Source Circuit
  1. Disconnect the power steering ECU connector.

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

    Standard Voltage:
    Tester Connection
    Switch Condition
    Specified Condition
    G46-5 (IG) - Body ground
    Ignition switch ON
    11 to 14 V
  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    G46-3 (GND) - Body ground
    Always
    Below 1 Ω
    Text in Illustration
    *a
    Front view of wire harness connector
    (to Power Steering ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM00000203M01IX.html)