Canada - Steering - VGRS Initialization Procedure

L-TCI-3234

October 5, 2012

INITIALIZATION OF VGRS SYSTEM DURING PDS

Service Category
General

Section
Pre-Delivery Service

Market
Canada





APPLICABILITY:

INTRODUCTION:

The DCC fuses are 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 DCC fuses, the Variable Gear Ratio Steering (VGRS) system will be inoperative and the steering wheel may be off-center. After the DCC fuses are reinstalled, the VGRS system will be operative but the steering wheel may become off-center by 5-10 degrees. 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 DCC fuse 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 after initialization





WARRANTY INFORMATION:





REQUIRED TOOLS & EQUIPMENT:

INITIALIZATION PROCEDURE:

1. Drive the vehicle on a straight road at 35 km/h (22 mph) or more for at least 5 seconds. At this point, the steering wheel will still remain off-center by 5 - 10 degrees.

NOTE

In this step, the neutral position of the steering wheel is recorded in the VGRS ECU memory.

2. Perform normal cornering 2 - 3 times. The steering wheel position is automatically corrected in this step.

3. With the vehicle stopped, turn the steering wheel from lock to lock and then drive straight again.

4. Confirm the steering wheel is centered.

^ If the steering wheel is centered, initialization is complete. Go to step 5.

^ If the steering wheel is off-center, repeat steps 1 - 3.





5. Confirm initialization has been completed.

A. Access the VGRS Data List using ETAS Techstream:

Chassis/VGRS/Data List

B. Confirm the "STRAIGH ANG FLG" parameter reads "VALID."

© 2012 Lexus, a division of Toyota Motor Sales, Canada