Canada - A/C - A/C Evaporator Drain Blockage

Bulletin
TSB2990R

Issue Date
April 1, 2008

Market
Canada

Title
HVAC EVAPORATOR DRAIN BLOCKAGE

Component
HEATING / AIR CONDITIONING

Models
'06-'10 YARIS

TSB REVISION NOTICE:
- October 29,2010: The Applicable Vehicle Section has been updated.
- A part number has been removed from the Parts Information table.
Any previous printed versions of this service bulletin should be discarded.

INTRODUCTION:

Some customers may experience water on the front or rear carpets of the vehicle due to the HVAC evaporator drain becoming blocked by debris. An improved cowl panel has been made available to help prevent debris from entering the HVAC unit. Follow the procedures listed in this bulletin to remove and replace the cowl panel.






APPLICABLE VEHICLES:






WARRANTY INFORMATION:






PARTS INFORMATION:

REPAIR PROCEDURE:

1. Verify HVAC evaporator drain hose is blocked with debris.
2. Remove debris from HVAC unit, blower motor housing and the HVAC evaporator drain hose.
3. Clean and dry HVAC unit, blower motor housing, evaporator drain hose, carpet and floor board area that may have been wet due to the blocked HVAC drain.
4. Remove the cowl panel. Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Yaris
- Year: 2006/2007/2008/2009/2010
- Service Category: Vehicle Exterior
- Section: Wiper/Washer
- Keyword: Front Wiper Motor (for Sedan]: Removal
- Keyword: Front Wiper Motor (for Hatchback]: Removal

5. Remove any debris from underneath the cowl panel.
6. Install the NEW cowl panel. Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Yaris
- Year: 2006/2007/2008/2009/2010
- Service Category: Vehicle Exterior
- Section: Wiper/Washer
- Keyword: Front Wiper Motor (for Sedan]: Installation
- Keyword: Front Wiper Motor (for Hatchback]: Installation

7. Operate air conditioning system and verify proper water drainage from HVAC drain.

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.