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Testing Diesel direct injection system relay J322 > < Testing components

Octavia Mk1

Testing lines and components with test boxV.A.G 1598/31
Testing lines 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  The test box -V.A.G 1598/31- is designed in such a way that it can be simultaneously connected to the wiring loom of the engine control unit and to the actual engine control unit.
t  The advantage being that the electronic engine control remains fully operational with the test box connected (e.g. measuring signals while the engine is running).
t  Whether the control unit is additionally connected to the test box or not, is indicated in the particular test procedure.
t  For connecting measuring equipment (e.g. handheld multimeter -V.A.G 1526 A- etc.) always use the adapter cable set e.g. -V.A.G 1594 A-
t  The contact numbers of the connectors and the bush numbers of the test box -V.A.G 1598/31- correspond.
  WARNING
To avoid damaging the electronic components, switch on the relevant measuring range before connecting the measuring cables and comply with the test conditions.
–  Switch off ignition.
–  Unscrew windscreen wiper arms and remove the plenum chamber cover → Body Work, Repair Group 66.
–  Release the connector catches and unplug the control unit connectors at the engine control unit.
  W00-0943
–  Connect test box -V.A.G 1598/31- to both connectors of the wiring loom. Clamp earth clip to battery.
–  Perform test as described in the relevant repair sequences.
  N24-0943

Testing Diesel direct injection system relay J322 > < Testing components