Safety Precautions

Safety precautions
Observe the following If the use of test and measuring Instruments Is necessary during test runs:

WARNING:
^ Proceed as follows In order to avoid the danger of accident during measuring and test trips:
^ Only the VAS5051 or VAG1551 may be used for read-out of the measured value blocks. The Instrument must In all cases be fixed to the rear seat and operated there by a second person.

Observe the following In order to avoid Injury to persons and/or damage to electrical and electronic components.
^ Only connect and disconnect measuring and test instruments with the ignition switched off.
^ In certain tests, the control module may detect and store a code. For this reason, the DTC memory should be checked and erased, if necessary, after completion of all checks and repairs.

Test preconditions:
^ Check fuses using the circuit diagram.
^ Connection of vehicle diagnosis, measuring and information system VAS5051 or scan tool VAG1551