Engine Controls - ECM Update For Shift Smoothness
T-SB-0068-08May 21, 2008
ECM Calibration: Enhancement to Shifting Performance & Smoothness
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
TSB SUPERSESSION NOTICE
The information contained in this TSB supersedes TSB No. EG036-07.
^ Applicability has been updated to include 2007 - 2008 model year Solara and 2008 - 2009 model year Camry.
^ The Op Code has been updated in the Warranty Information table.
^ Part numbers have been updated in the Parts Information table.
^ Calibration IDs have been updated and added to the Calibration Identification Chart.
TSB No. EG036-07 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding.
Introduction
To enhance shifting performance and smoothness during acceleration the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) calibration has been revised. Use the following repair procedure to address customer concerns.
Warranty Information
^ 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.
Calibration Information
Parts Information
Required Tools & Equipment
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).
NOTE
^ 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 located on the Technical Information System (TIS), Diagnostics - Battery
Follow the procedures outlined in TSB No. "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 ECM (PCM) initial learning.
Refer to TIS:
2007 / 2008 / 2009 model year Camry Repair Manual, Drivetrain - Automatic Transmission/Transaxle - "U250E Automatic Transaxle: Automatic Transaxle System: Road Test" or model year Solara Repair Manual - Drivetrain - Automatic Transmission/Transaxle - "U250E Automatic Transaxle: Automatic Transaxle System: Road Test"
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]
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.