chiwia . & | [| { 8 | oxen / TECH TIPS Dixie Part Numbers: NA at the time of release Applications: 2009 Lincoln MKS with the THX audio system 2009 Lincoln MKZ with the THX audio system 2009 Lincoln Navigator with the THX audio system Condition: The operator of the vehicle may complain that there is a screeching, popping, feedback. In addition they may comment that the THX setting switches back to the default stereo mode after starting or that the volume setting has increased with a cycle of the start key. Cause: A possible cause is that the THX audio module may have an older calibration file. Correction: The correct calibration file for the THX audio module is 59.7 patch 10 or 60.1 patch 1 and higher. These files were not included on the 2009.3 DVD release of updates. REV: 20091221 Courtesy of Dixie Technical Department TSB_235.doc Dixie Tech Tips are intended for use by professional technicians, and are not for the general public. They are written to inform technicians of conditions that may exist or as a guide to aid in diagnosing and servicing a vehicle. All references to original equipment manufactures, vehicle manufactures and any other Trade Mark names are for the sole purpose of identifying the vehicle and or part that the Tech Tip applies to. This document is property of Dixie Electric Ltd. and is not to be copied or distributed with out written permission.