Electric Steering Lock Power Source Circuit

Steering. Lexus Gs430, Gs300. Uzs190 Grs190
Steering Column. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)

ELECTRIC STEERING LOCK - Power Source Circuit


DESCRIPTION

This circuit supplies power source voltage from the battery to terminal B of the steering lock ECU. This is used as power source for the CPU, motor, communication, and peripheral circuits.

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Electric Steering Lock  Power Source Circuit


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BODY GROUND)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Electric Steering Lock  Power Source Circuit
  1. Disconnect the L28 connector from the steering lock actuator assembly.

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

    Resistance:
    Tester connection
    (Symbols)
    Condition
    Specified condition
    L28-1 (GND) - Body ground
    Always
    Below 1 Ω
    L28-2 (SGND) - Body ground
    Always
    Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Electric Steering Lock  Power Source Circuit
  1. Measure the voltage according to the value(s) in the table below.

    Voltage:
    Tester connection
    (Symbols)
    Condition
    Specified condition
    L28-7 (B) - L28-1 (GND)
    Always
    10 to 14 V
    L28-7 (B) - L28-2 (SGND)
    Always
    10 to 14 V


OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)