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Relay for the diesel direct injection system J322 : checking > < Components and functions: checking
Checking cables and components with test boxV.A.G 1598/31
Checking cables and components with test box -V.A.G 1598/31-
Special tools and workshop equipment required
   
t  Test Box -V.A.G 1598/31-
  Note!
t  Test box -V.A.G 1598/31- is designed so that it can connect simultaneously to the wiring harness, to the engine control unit and to the unit itself.
t  This has the advantage that the engine control unit continues to function fully with the test box connected (e.g. measuring signals while the engine is running).
t  The need to additionally connect the control unit to the test box is indicated in the corresponding test processes.
t  The connector contact number and the test box -V.A.G 1598/31- connection number coincide.
  Caution
To avoid destroying the electronic components, before connecting the measuring cable, the corresponding measuring range must be chosen and the testing conditions adhered to.
–  Switch off ignition.
–  Loosen the fixing of the connectors and separate the connectors from the engine control unit.
  W00-0943
–  Connect the test box -V.A.G 1598/31- to both the wiring harness connectors. The earth clip in the test box should be connected to the battery negative.
–  Carry out the test as described in the corresponding test processes.
  E23-0084

Relay for the diesel direct injection system J322 : checking > < Components and functions: checking