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 the battery is connected, volatile memories must be reprogrammed. In the case of radio coding and tuning, the customer must be informed of decoding and the deleted tuner memory.
After the battery has been connected, the instructions in the assembly. Refer to WORK INSTRUCTIONS AFTER DISCONNECTING THE BATTERY must be observed.
Deactivate the automatic traffic announcement before beginning the diagnosis on the PCM2. If this is not done, the system will crash (only for software version < 03).
When working on the optical waveguide, please observe the instructions in assembly. Refer to OPTICAL FIBER (LWL) - MOST BUS .
After troubleshooting or repairs, erase the fault memory with the Porsche System Tester II 9588 and carry out a test drive.
After the test drive, read out the fault memory with the Porsche System Tester II 9588 again.

WARNING: Danger of injury through triggering of driver's airbag. Never hang the Porsche System Tester II 9588 over the steering wheel.

CAUTION: Danger of damage due to improper handling of the battery and the control module connectors!

Never disconnect battery with engine running.
Never start engine without securely connected battery.
Never pull off or push on plug connections for the control modules or other electronic components when the ignition is switched on.