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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> 9X - Electrical System - General -- 911 CARRERA (991) >> WM 9X00IN Basic Instructions And Procedure For Control Unit Programming Using The PIWIS Tester (Except CARRERA "Edition", CARRERA Cabriolet "Edition", CARRERA 4 "Edition", CARRERA 4 Cabriolet "Edition") >> General Preliminary Work

General Preliminary Work

  1. Connect a battery charger with a current rating of at least 40 A  (e.g. battery charger HFL 65 WE 1353  ).

    First connect the positive cable of the charger to the positive terminal of the battery and then connect the negative cable of the charger to the ground point for jump-lead starting → External power supply  .

    Fig 1: Connecting Charger Positive Cable To Battery Positive Terminal
    G09998826Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  2. Switch on the battery charger.
  3. Switch on the ignition using the original driver's key  .

    On vehicles with "Porsche Entry & Drive", do this by replacing the control panel in the ignition lock with the original driver's key if necessary.

  4. PIWIS Tester II 9818  must be connected to the vehicle communication module (VCI) via the USB cable  . Then, connect the communication module to the vehicle and switch on the PIWIS Tester.
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