Electrical - Multiple Warning Lamp/Can't Shift From PARK

L-SB-0057-09

May 13, 2009

IGI Relay Freezing

Service Category
Power Source/Network

Section
Networking

Market
USA





Applicability

Introduction

Some customers may experience multiple warning lights illuminated vehicle not shifting from park to drive and other accessories becoming inoperative after the vehicle has cold soaked in sub-freezing (below 14 F [-10 C]) ambient air temperatures. A new relay and wire harness has been made available to improve this condition. Use the following procedure to address this concern.





Parts Information

Warranty Information





APPLICABLE WARRANTY

^ This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.

^ Warranty application is limited to correction of a problem based upon a customer's specific complaint.








Required Tools & Equipment

NOTE:
Additional SSTs may be ordered by calling 1-800-933-8335.

NOTE
Additional TIS Techstream units may be ordered by calling Approved Dealer Equipment (ADE).

Repair Procedure

CAUTION
Work must not be started less than 90 seconds AFTER the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery. (The SRS is equipped with a back-up power source. If work is started within 90 seconds from disconnecting the negative (-) terminal cable of the battery, the SRS may deploy).

1. Remove the knee airbag.

Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:

^ RX330:

Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Removal"

^ 2007 / 2008 / 2009 RX350:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Removal"

^ 2007 / 2008 / 2009 ES350:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Removal"

^ 2006 / 2007 / 2008 RX400H:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Removal"

2. Remove the IG1 Relay from the Junction Block.

3. Install the new IG1 Relay.








NOTE

For RX use Figure 1, for ES use Figures 2 and 3.

A. Install the new IG1 relay to the end of the sub-harness.

B. Install the other end of the harness to the Junction Block.

C. Route the harness according to the correct figure.

NOTE
Do NOT attach the wire tie to an unprotected wire.

D. Using wire ties secure the harness and the relay.

4. Reinstall the knee airbag.

Refer to TIS applicable model and model year Repair Manual:

^ 2006 RX330:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Installation"

^ 2007 / 2008 / 2009 RX350:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Installation"

^ 2007 / 2008 / 2009 ES350:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Installation"

^ 2006 / 2007 / 2008 RX400H:
Vehicle Interior - Supplemental Restraint Systems: "Driver Side knee Airbag Assembly: Installation"

5. Connect TIS Techstream and clear any stored DTCs.

6. Initialize power systems (windows moonroof etc.). Refer to appropriate service bulletin.