Download ’06-07 Avalon ECM Calibration: Enhancement To Shifting Performance & Smoothness – 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 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).