Power Tilt And Power Telescopic Steering Column Actuator Power Source Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (TI & TE)

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BATTERY)

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND)

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - COWL SIDE J/B RH)

POWER TILT AND POWER TELESCOPIC STEERING COLUMN - Actuator Power Source Circuit


DESCRIPTION

This is the power source for the motors.

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column Actuator Power Source Circuit


INSPECTION PROCEDURE

1.INSPECT FUSE (TI & TE)

  1. Remove the TI & TE fuse from the cowl side J/B RH.

  1. Check the continuity of the TI & TE fuse.

    OK:
    Continuity


NG
REPLACE FUSE
OK


2.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BATTERY)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column Actuator Power Source Circuit

  1. Disconnect the L27 connector from the multiplex tilt & telescopic ECU.

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

    Voltage:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    +B (L27-2) - Body ground
    		Always
    		10 to 14 V


NG
Go to step 4
OK


3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column Actuator Power Source Circuit

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

    Resistance:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    GND (L27-11) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

4.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - COWL SIDE J/B RH)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column Actuator Power Source Circuit

  1. Disconnect the DA connector from the cowl side J/B RH.

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

    Resistance:
    Tester condition
    (Terminal No.)
    		Condition
    		Specified value
    +B (L27-2) - DA-15
    		Always
    		Below 1 Ω
    +B (L27-2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - COWL SIDE J/B RH)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - COWL SIDE J/B RH)