Engine Controls - ECM Calibration Update: Shift Enhancement
T-SB-0050-12February 28, 2012
ECM Calibration Update: Shift Feeling Enhancement
Service
Category Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
Introduction
To improve shift quality and smoothness during acceleration and deceleration the Engine Control Module (ECM SAE term: Powertrain Control Module/PCM) calibration has been revised. Use the following repair procedure to address this condition.
Warranty Information
Parts Information
Calibration 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).
^ 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. T-SB-0064-10, "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 the Technical Information System (TIS) applicable model year Repair Manual:
^ 2012 Camry:
Drivetrain - Automatic Transmission/Transaxle - "U760E Automatic Transmission/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.