THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN FOR VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON LAMP AND A CURRENT OR HISTORY DIAGNOSTIC TROUBLE CODE P0A7F. DO NOT CLEAR ANY DIAGNOSTIC TROUBLE CODE OR DISCONNECT THE 12 VOLT BATTERY. TECHNICIAN WILL REVIEW THE FREEZE FRAME DATA AND RECORD THE HIGH VOLTAGE BATTERY 4 DIGIT CAPACITY CODE THEN CONTACT THE TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS.