Lexus ES manuals

Lexus ES: IG Power Source Circuit

DESCRIPTION

When the power switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

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

(a) Disconnect the G63 multiplex tilt and telescopic ECU connector.

*a

Front view of wire harness connector

(to Multiplex Tilt and Telescopic ECU)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G63-10 (IG) - Body ground

Power switch on (IG)

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

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

(a) Disconnect the G63 multiplex tilt and telescopic ECU connector.

*a

Front view of wire harness connector

(to Multiplex Tilt and Telescopic ECU)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G63-1 (GND) - Body ground

Always

Below 1 Ω

G63-8 (GND2) - Body ground

Always

Below 1 Ω

OK

REPLACE MULTIPLEX TILT AND TELESCOPIC ECU

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

READ NEXT:

 Power Tilt And Power Telescopic Steering Column System(for Gasoline Model)

 Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the c

 Parts Location

PARTS LOCATION ILLUSTRATION *1 TILT AND TELESCOPIC SWITCH *2 STEERING COLUMN ASSEMBLY - TILT MOTOR - TELESCOPIC MOTOR *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY

SEE MORE:

 Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during luggage door hinge torsion bar removal/installation are shown below. Necessary Procedure After Parts Re

 Front passenger occupant classification system

Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions of the front passenger seat and activates or deactivates the front passenger airbag, and front passenger knee airbag. System components Driver's and front passenger's seat

© 2016-2025 Copyright www.lexguide.net