Canada - Steering - Poor On Center Steering Feel

Bulletin
TSB3406

Issue Date
July 30, 2010

Market
Canada

Title
STEERING ON-CENTER FEEL

Component
STEERING

Models
'09-'10 Corolla

INTRODUCTION:
Some customers have expressed dissatisfaction with the on-center steering feel on the 2009 - 2010 model year Corolla vehicles. A re-tuned Power Steering Computer Assembly has been developed to provide an alternative steering feel for these customers.






APPLICABILITY:

NOTE:
This TSB does NOT apply to XRS grade Corolla vehicles.






WARRANTY INFORMATION:






PARTS INFORMATION:

REPAIR PROCEDURE:
1. Test drive the vehicle to confirm the customer's complaint.
2. Check for correct tire pressure on all four wheels and adjust per the tire pressure label located on the driver's door.

NOTICE:
Low or high tire pressure will affect on-center feel.

3. Confirm that the vehicle does not have a pulling condition. If a pull is felt to either side, diagnose and repair the condition.
Refer to TSB No. TSB1081, "Repair Manual Supplement: Vehicle Pulling to One Side".

4. If NO pull is detected, proceed with the following:
A. Inspect the front and rear tires for any irregular wear that might indicate an alignment concern. If tires show excessive wear, replace as needed. Tires are warranted by the tire manufacturers. Contact respective tire manufacturer before replacing under warranty.
B. Check the front and rear suspension components for any damage or irregular wear, and repair as necessary.

5. If the above conditions are NOT present, replace the Power Steering Computer Assembly. Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Corolla
- Year: 2009 / 2010
- Service Category: Vehicle Interior
- Section: Interior Panels/Trim
- Keyword: Interior Panels/Trim: Upper Instrument Panel: Removal

- Division: Toyota
- Model: Corolla
- Year: 2009 / 2010
- Service Category: Steering
- Section: Power Assist Systems
- Keyword: Power Assist Systems: Power Steering ECU (2AZ-FE): Removal

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.