Transmission Electrical Check

Transmission electrical check, 09A, 5 Spd. A/T

Special tools and equipment:

^ VAG 1526 A multimeter
^ VAG 1594 A Adapter set
^ VAG 1598/18 Test box

Test requirements
^ Battery voltage OK
^ Vehicle voltage supply in OK
^ Fuses in main fuse box OK
^ Fuses 7, 11, 13, 15 and 31 OK
^ Check Ground connections for transmission:





The transmission control module (arrow) is located in the plenum chamber.
- Check Ground connections for corrosion and poor contact; repair if necessary.

Ground connection point is located under battery.
- Check battery Ground strap and Ground strap between battery and transmission.
- Switch ignition off, release multi-pin connector and disconnect control module.





- Connect test box VAG 1598/18 to multi-pin connector -1- and lock in direction of arrow -2-.

Using the test box VAG 1598/18 the wiring can be checked according to the wiring diagram.

Note:
^ Before connecting test leads the correct measuring range on the tester must be adjusted. Otherwise the electronic components can be destroyed!
^ Use the multimeter VAG 1526 with auxiliary cables from VAG 1594 for testing.
^ The specified values are valid for an ambient temperature from 0°C to 40°C.
^ If the readings obtained differ from the specified values, determine what is faulty on the basis of the wiring diagram.
^ If the readings obtained differ only slightly from the specified values, clean sockets and connectors of the testers and test leads and repeat test. Before replacing the particular components, test wiring and connections and, particularly if specified values are below 10 Ohms, repeat resistance measurement on component.





Socket assignment on control module connector