Technical Instructions

I. OPERATION FLOW CHART

II. IDENTIFICATION OF AFFECTED VEHICLES





A. AFFECTED VIN RANGE

III. PREPARATION





A. PARTS

NOTE:
The Brake Booster Assembly does not come with the push rod clevis and lock nut. These two parts must be transferred over from old brake booster to the new one.

B. TOOLS

^ Standard hand tools

^ Torque wrench

^ Scan tool

^ SST 09023-00100

^ SST 09737-00020

IV. COMPONENTS





A. BRAKE BOOSTER

V. BACKGROUND

Certain 2004 Model Year Lexus RX 330 vehicles may exhibit a hard brake pedal feeling during cold starts that may cause the brake warning light to illuminate. This condition is caused by a vacuum leak, and is due to inadequate sealing of portions of the brake booster diaphragm as it moves within the brake booster housing.

VI. WORK PROCEDURE

A. BRAKE BOOSTER PRODUCTION LOT NUMBER VERIFICATION

1. LOCATE THE PRODUCTION LOT NUMBER





(a) Locate the production lot number on the brake booster as shown in the illustration shown.

2. READING AND VERIFYING THE PRODUCTION LOT NUMBER





(a) How to read the production lot number.

NOTE:
^ Lot numbers for vehicles manufactured before January 2004 are stamped. The stamped production lot numbers may be difficult to read, if the stamped numbers cannot be identified, replace the brake booster.

^ Lot numbers for vehicles manufactured after January 2004 are printed.





(b) Determine if the production lot number is affected.

(c) If the production lot number is NOT affected, brake booster replacement is NOT necessary.

(d) If the production lot number is affected

^ Replace the brake booster following the procedures outlined in the Lexus RX 330 Repair Manual.

^ Transfer the push rod clevis and lock nut from the old brake booster to the new one, then check and adjust the brake pedal height following the procedures outlined in the Brake Pedal Sub-Assy Adjustment section in the Lexus RX 330 Repair Manual.

VII. SSC COMPLETION LABEL INSTALLATION





After completing the repair and before returning the vehicle to the owner, an SSC completion label, which is enclosed in the owner's notification letter, must be affixed to the left front door hinge post, near the check strap.

(a) The label is to be filled out as follows:

^ Write in SSC 5LA.

^ Write in date of repair. Write in your dealer code.

(b) Additional SSC completion labels, in sheets of 50 (P/N 00410-01917), may be ordered through the non-parts system on your DMS system.