Canada - Engine, A/T Controls - Harsh Shifting

Bulletin
TSB2775

Issue Date
June 13, 2007

Market
Canada

Title
ECM CALIBRATION: ENHANCEMENT TO SHIFTING PERFORMANCE & SMOOTHNESS

Component
ENGINE ELECTRICAL

Models
2006 - 2007 Avalon

INTRODUCTION:

To enhance shifting performance and smoothness during acceleration, the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) calibration has been revised. Please use the following procedure to address customer concerns.

NOTE:
- Before proceeding, verify the ECM (PCM) calibration has NOT been updated by checking for the Authorized Modifications Label (shown in step 1 of the Repair Procedure).

APPLICABLE VEHICLES:
- 2006 - 2007 model year Avalon vehicles.






PARTS INFORMATION:

NOTE:
- The ECM (PCM) does NOT need to be replaced as part of the Repair Procedure.
- Authorized Modification Labels may be ordered in packages of 25 from your facing PDC.






PRODUCTION CHANGE INFORMATION:






WARRANTY INFORMATION:






REQUIRED SSTs:






CALIBRATION IDENTIFICATION CHART:

NOTE:
Vehicles which have been flash reprogrammed using this TSB will contain upgraded 2007 model year OBD 11 logic. Refer to the 2007 Avalon Repair Manual when checking Powertrain Diagnostic Trouble Codes.

REPAIR PROCEDURE:







1. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 1. Confirm if the TCM calibration has been updated. If the calibration ID listed is NOT the latest TCM calibration - go to step 2.
2. Flash reprogram the ECM (PCM).

NOTE:
The Midtronics Battery charger MUST be used in Power Supply Mode to maintain battery voltage at 13.5 volts while flash programming the vehicle.

Follow the procedures outlined in TSB2758, "Techstream ECU Flash Reprogramming Procedure," and flash the ECM (PCM) with the NEW calibration file update.

3. Start the engine and warm it up to normal operating temperature before test-driving.
4. Test-drive the vehicle to confirm proper vehicle operation (and proper laser cruise control operation, if so equipped).Test-drive the vehicle to confirm proper vehicle operation.
5. Install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:
- TCM part number: [Refer to the Parts Information section for the CURRENT PART NUMBER]
- Calibration I D(s): [Refer to the Calibration Identification Chart for the NEW CALIBRATION ID]
- Dealer Code
- Repair Date
- Change Authority (this TSB number): TSB2775

B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 1. The Authorized Modifications Label is available through the MDC, P/N 00451-00001-25.

6. Test-drive the vehicle to confirm proper vehicle operation.

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.