Antitheft and Alarm Systems: 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 9588 Porsche System Tester II and carry out a test drive.
- After the test drive, read out the fault memory with the 9588 Porsche System Tester II again.

DANGER:
Danger of injury through triggering of driver's airbag
- Never hang the 9588 Porsche System Tester II 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.
- Danger of injury due to risk of fire in the event of short circuits in wiring harness and risk of fluids emerging from disconnecting relay (for battery interruption) when pressed
- The disconnecting relay (for battery interruption) must only be pressed by trained and authorised staff.
- Damage, abrasions or squashed wires in the wiring harness must be located and repaired.
- Short circuits to B+ short circuits to ground and open circuits in the entire wiring harness must be eliminated or repaired.
- Mechanical components must not be damaged in any way that could cause emerging fluids to ignite in the event of a short circuit.
- Danger of personal injury by moving vehicle independently with gear engaged and engine running
- Before starting the engine in a vehicle with manual transmission, take the vehicle out of gear and put the hand brake on firmly
- Before starting the engine in a vehicle with automatic transmission, move the selector lever to position 'P' and put the hand brake on firmly
- Danger of personal injury by moving vehicle independently with gear engaged, engine running and switching to any driving programme setting if plug C of the existing transmission wiring is not connected or is not connected correctly.
- Before starting the engine in a vehicle with automatic transmission, take the vehicle out of gear and put the hand brake on firmly
- Plug C of the existing transmission wiring (for multi-function switch, etc.) must always be connected before starting the engine

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