Navigation System: Service Precautions

Navigation System III, On Board Diagnostics (OBD)

Safety Precautions

If special testing equipment is required during test drive, note the following:


WARNING!
- To reduce the risk of accidents observe the following:
- During a road test in an airbag-equipped vehicle, the VAS 5051 tester or the VAG 1551 scan tool must always be fastened to and operated from the rear seat by a second technician.


To reduce the risk of injury to people and or damage to the electrical system and components, observe the following:

- Always switch ignition off before connecting or disconnecting test/measurement tools.
- It is possible that the control module will recognize a malfunction and store a DTC during some tests. After completing all tests and repairs, DTC memory should therefore be checked and if necessary erased.
- Always switch ignition off before disconnecting or connecting battery. Failure to do so may damage a control module.