Engine, A/T Controls - Harsh Shifting
ENGINEEG029-07
Title:
ECM CALIBRATION: ENHANCEMENT
TO SHIFTING PERFORMANCE
& SMOOTHNESS
Models:
'06 - '07 Avalon
June 6, 2007
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 produced BEFORE the Production Change Effective VIN shown below.
Production Change Information
Parts Information
Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution Center (MDC) through Dealer Daily Dealer Support Materials System or by calling the MDC.
Warranty Information
Applicable Warranty*:
This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for 96 months or 80,000 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 & Material
NOTE:
^ Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE).
^ The Toyota Diagnostic Tester and CAN Interface Module may also be used to perform the service procedures listed in this bulletin.
^ The GR8 Battery Diagnostic Station (P/N 00002-MCGR8) supersedes the Automatic Trickle Charger (P/N 00002-YA122-01) and Fast Battery Chargers (Associated P/N ASE6003 and Christie P/N CAPPDQ). P/N 00002-YA122-01, ASE6003, and CAPPDQ are now obsolete.
Calibration Identification Chart
Vehicles which have been flash reprogrammed using the procedures in this TSB will contain upgraded 2007 model year OBD Illogic. Refer to the 2007 model year Avalon Repair Manual on the Technical Information System (TIS) when checking Powertrain Diagnostic Trouble Codes (DTCs) on 2006 model year vehicles that have been reprogrammed.
Repair Procedure
1. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 1. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listed is NOT the latest ECM (PCM) calibration go to step 2.
2. Flash Reprogram the ECM (PCM).
^ The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain battery voltage at 13.5 volts while flash reprogramming the vehicle.
^ For details on how to use the GR8 Battery Diagnostic Station, refer to the GR8 Instruction Manual located on TIS, Diagnostics - Battery.
Follow the procedures outlined in TSB No. SS002-07, "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).
5. Install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:
^ ECM part number: [Refer to the Parts Information section for the CURRENT PART NUMBER]
^ Calibration ID(s): [Refer to the Calibration Identification Chart for the NEW CALIBRATION ID]
^ Dealer Code
^ Repair Date
^ Change Authority (this TSB number): EG029-07
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-LBL.