Instrument Panel, Gauges and Warning Indicators: Service Precautions

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.

DANGER
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 Information, 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.