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Home >> Porsche >> 2004 >> 911 GT2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (General Information - Electrics - 911 CARRERA (996)) >> Work instructions after disconnecting the battery >> Effect of disconnection or total discharge of the battery on electrical systems in the vehicle, subsequent measures

Effect of disconnection or total discharge of the battery on electrical systems in the vehicle, subsequent measures

WARNING: This page is about a different variant/trim than selected.
  1. Never disconnect battery with engine running!
  2. Never start engine without securely connected battery!
  3. Do not use a boost charger to start the engine!
  4. Whenever possible, use jump leads with overvoltage protection!
  5. Always disconnect both battery terminals before carrying out welding work on the vehicle!
  6. Wiring harness plugs of control modules or other electronic components must be connected or disconnected with the ignition off. Exception: vehicles with the additional equipment M 536 (alarm siren with tilt sensor)!
    NOTE: Concerning the M 536: 

    In order to avoid triggering the alarm siren (installed on right next to the battery) of vehicles with M 536, the battery must be disconnected with the ignition on (all loads must be switched off beforehand).

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