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

DESCRIPTION

This is the power source for the motors.

Power Tilt And Power Telescopic Steering Column System - Actuator Power Source Circuit. STEERING COLUMN. Lexus IS250 IS220d GSE20 ALE20

1.INSPECT FUSE (TI & TE)

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

Measure the resistance of the TI & TE fuse.

OK

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

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

4.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - MAIN BODY ECU RH)

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

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

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

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

Tester connection (Terminal No.)	Condition	Specified value
GND (J28-11) - Body ground	Always	Below 1 Ω

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