Power Tilt And Power Telescopic Steering Column System Actuator Power Source Circuit

Steering. Lexus Is250, Is220D. Gse20 Ale20
Steering Column. Lexus Is250, Is220D. Gse20 Ale20

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 - MAIN BODY ECU RH)

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


DESCRIPTION

This is the power source for the motors.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column System Actuator Power Source Circuit


INSPECTION PROCEDURE

1.INSPECT FUSE (TI & TE)

  1. Remove the TI & TE fuse from the main body ECU RH (cowl side J/B RH).

  1. Measure the resistance of the TI & TE fuse.

    Standard resistance:
    Below 1 Ω


NG
REPLACE FUSE
OK


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


    Lexus Is250, Is220D. Gse20 Ale20.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column System Actuator Power Source Circuit

  1. Disconnect the J28 connector from the multiplex tilt & telescopic ECU.

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

    Standard voltage:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    +B (J28-2) - 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 Is250, Is220D. Gse20 Ale20.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column System Actuator Power Source Circuit

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

    Standard resistance:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    GND (J28-11) - 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 - MAIN BODY ECU RH)


    Lexus Is250, Is220D. Gse20 Ale20.Steering Column.Steering System.Power Tilt And Power Telescopic Steering Column System Actuator Power Source Circuit

  1. Disconnect the RA connector from the main body ECU RH (cowl side J/B RH).

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

    Standard resistance:
    Tester condition
    (Terminal No.)
    		Condition
    		Specified value
    +B (J28-2) - RA-15
    		Always
    		Below 1 Ω
    +B (J28-2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - MAIN BODY ECU RH)
OK

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