Canada - Exhaust System - Excessive Sulfur Odors

Bulletin
2011

Issue Date
September 14, 2004

Market
Canada

Title:
EXCESSIVE SULPHUR ODOUR

Component
ENGINE MECHANICAL

Model
'04 - '06 Highlander (2AZ)

TSB REVISION NOTICE:
- March 02, 2006: 2006 model year has been added to Applicable Vehicles.
- May 19, 2005: 2005 model year has been added to Applicable Vehicles.
Previous versions of this TSB should be discarded.

INTRODUCTION:
Some customers may complain of excessive sulphur dioxide odour on 2004 - 2006 model year Highlander vehicles equipped with 2AZ engines under the following conditions:
- Stop and go driving
- Heavy acceleration

In order to reduce the sulphur dioxide odour, a new catalytic converter has been developed.

Note:
For more complete understanding of the root cause, refer to TSB1212 "Sulphur Odour from Exhaust" dated March 4, 2003







APPLICABLE VEHICLES:
- 2004 - 2006 model year Highlander vehicles with the 2AZ engines and produced with the following Vehicle Description Section (VDS) information shown below.

NOTE :
To locate the VDS, refer to the 4th through 8th digits of the VIN for model applicability i.e. JTEGD21A940074041.







PARTS INFORMATION:

*NOTE:
The original part number (17420--28460) is currently used in vehicle production and is still available as a service part. The repair part number (17420--28580) should only be used when the customer complains of sulphur odour.







WARRANTY INFORMATION:

REPAIR PROCEDURE:
Refer to ETAS:
- 2004 - 2005 model year Highlander Repair Manual: Exhaust: Exhaust Pipe Assy
- 2006 model year Highlander Repair Manual: 2AZ-FE Exhaust: Exhaust Pipe

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.