‘“scliwia | # | [| { & | verse gy TECH TIPS Dixie Part Numbers: A-6568 A-6572 TBA Applications: 2007 — 2012 Porsche 911 Carrera (all models) 2007 — 2012 Porsche 911 Targa (all models) 2007 — 2012 Porsche 911 Turbo (all models) Conditions: The operator of the vehicle may complain that the alternator voltage fluctuates. The technician may observe voltages between 12 and 16V. Diagnostic trouble codes P1694 and P1699 (under and over voltage codes) may be stored in the system. Cause: A potential cause for the above conditions is a design feature which allows the onboard computer modules to control the alternator output based on demands and temperature. Correction: Follow the manufacturer’s recommended diagnostic and repair procedures which include ensuring that the temperature measuring device in the alternator has not exceeded the 135°C limit or inaccurate voltage readings will be obtained. The diagnostic trouble codes will clear themselves and may be triggered by driving conditions. REV: 20120712 Courtesy of The APRA TSB_687.docx 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.