Initialization Of VGRS System During PDS (PD065-06)

Publication date: 2006-08-18
Reference number: PD065-06

INITIALIZATION OF VGRS SYSTEM DURING PDS

TECHNICAL SERVICE BULLETIN

Reference Number(s): PD065-06, Date of Issue: August 18, 2006

LEXUS:	2007 LX 470
Section:	PRE-DELIVERY SERVICE
COPYRIGHT:	© 2018 Lexus, a division of Toyota Motor Sales, USA License Agreement TMS1002

Introduction

This bulletin describes the initialization procedure for the Variable Gear Ratio Steering (VGRS) system.

The Short Pin is removed at the assembly plant to reduce parasitic current draw from the battery during transport and storage. As a result of the removal of the Short Pin, the VGRS system will be inoperative and the steering wheel may be off-center.

After the Short Pin is installed, the VGRS system will be operative, but the steering wheel may remain off-center by 5 - 10 degrees to the right or left. This condition may also appear when the battery terminal has been disconnected.

Initialize the VGRS system following the procedure in this bulletin after installing the Short Pin or when reconnecting the battery terminal.

NOTE: Do NOT adjust the steering wheel centering (i.e., do NOT adjust tie rod ends) before initialization of the VGRS system, or the steering may be off-center on the opposite side after initialization.

Applicable Vehicles

2007 model year LX 470 vehicles.

Warranty Information

WARRANTY INFORMATION

OP CODE	DESCRIPTION	TIME	OFP	T1	T2
N/A	Not Applicable to Warranty	-	-	-	-

Initialization Procedure

Make sure the Short Pin has been installed to its original location (refer to TSIB No. PD061-06, SHORT PIN INSTALLATION DURING PDS

Fig 1: Identifying Short Pin Location
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Turn the ignition switch to the "ON" position and check that the VGRS and VSC/TRAC warning lights illuminate for a few seconds.
NOTE: If the warning lights remain ON or blink, repair the applicable system according to the Repair Manual.
Drive the vehicle on a straight road at 22 mph (35 km/h) or more for 5 seconds or longer.
At this point, the steering wheel will still remain off-center by 5 - 10 degrees.

Fig 2: Identifying VGRS & VSC/TRAC Warning Lights
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

In this step, the neutral position of the steering wheel is recorded in the VGRS ECU memory.
Perform normal cornering 2-3 times.
HINT:

The steering wheel position is automatically corrected in this step.

NOTE: If the steering wheel remains off-center after the above procedure, repair the VGRS system according to the 2007 LX 470 Repair Manual.