General instructions/safety instructions

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 must be observed. Refer to WORK INSTRUCTIONS AFTER DISCONNECTING THE BATTERY .
• Deactivate the automatic traffic announcement before beginning the diagnosis on the PCM2. If this is not done, the system will crash (applies only to software version < 03).
• When working on the optical waveguide, please observe the instructions in assembly. Refer to OPTICAL WAVEGUIDE - 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.