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Home >> Porsche >> 2003 >> 911 Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Convertible Top, Hardtop Diagnosis - 911 CARRERA (996)) >> Introduction - 911 Carrera (996) as of model year 2003 >> General instructions/safety instructions

General instructions/safety instructions

WARNING: This page is about a different variant/trim than selected.

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.