Safety measures
CAUTION:
Before beginning repairs on electrical system
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Disconnect negative (attery terminal where instructed by procedures in this article
- When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks as specified in → Battery, disconnecting and connecting .
CAUTION:
- Airbag harness and connector repairs must only be performed using genuine Volkswagen replacement terminals, connectors and harnesses Parts Catalog.
- Airbag and safety belt tensioner harness and connector repairs must only be performed using VAS 1978 Wiring Harness Repair Kit VAS 1978 Instruction Manual.
CAUTION:
- Always disconnect negative (attery terminal prior to servicing any parts of the electrical system marked with the yellow "HIGH VOLTAGE" symbol.
- After disconnecting battery, briefly turn affected system on and off in order discharge any residual voltage.