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 troubleshooting or repairs, erase the fault memory with the Porsche System Tester II No. 9588 and carry out a test drive.
After the test drive, read out the fault memory with the Porsche System Tester II No. 9588 again.

WARNING:

Danger of injury through triggering of driver's airbag

Never hang the Porsche System Tester II No. 9588 over the steering wheel.

WARNING: Danger of injury and damage due to unusual vehicle handling when plugs or components are disconnected!

Never disconnect plugs when the vehicle is in motion or drive the vehicle with plugs disconnected.
Drive only with all parts fully installed and connected.

CAUTION: Danger of damage due to improper handling of batteries and control module plug connections!

Never disconnect battery with engine running
Never start engine if battery terminal clamps are not connected securely
Never pull off or push on plug connections for the control modules or other electronic components when the ignition is switched on.
Always disconnect the negative terminal of the battery and pull off all plug connections to the vehicle electrical system control module when carrying out welding work on the vehicle

NOTE: The instrument cluster described in this 'Technical Manual, Diagnosis' is a system that actually comprises two components since the instrument cluster includes a so-called gateway, which 'mirrors' the CAN messages from various CAN bus systems (CAN comfort, CAN drive, CAN Infotainment) onto the required CAN. It is, so to speak, a galvanically separated interface between the CAN bus systems.