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General instructions/safety instructions

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

The following points must be observed during vehicle diagnosis:

After troubleshooting or repairs:

CAUTION: Danger of damage due to improper handling of batteries and control module plug connections!
  • Disconnect the battery connection terminals only when the engine is switched off!
  • Start the engine only when the battery connection terminals are properly connected!
  • Pull off or push on plug connections for the control units or other electronic components only when the ignition is switched off!
  • Disconnect the negative terminal of the battery before welding work on the vehicle.