Download Aisin Transmission Harsh Shifting No DTCS 2006 Ford Fusion – ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE 1. If diagnostic bother codes (DTCs) are present in transmission management module (TCM)/powertrain control module (PCM), do not continue with this TSB. Perform normal diagnostics. 2. If no DTCs are present and mileage is below 20,000 miles (32,200 km) reprogram TCM / PCM and retest. 3. If no DTCs are present and vehicle is over 20,000 miles (32,200 km), fluid should be drained and checked for excessive contamination. If fluid is clean, the valve body should be replaced and TCM / PCM updated to the latest calibration level. Refer to WSM, Section 307-01B for main control valve body replacement. 4. If excessive contamination is present, install a new transaxle assembly following normal prior approval guidelines. Reprogram the PCM and TCM to the latest calibration using IDS release 52.8 and higher or 53.1 and higher.