Electrical Testing Instructions and Requirements

Special tools and testers:
- Test box VAG 1598/20
- Adapter set VAG 1594
- Multimeter, Fluke 83 or equivalent

Additional information:
- Service and Repair, Passat 1998 On, 5-speed automatic transmission 01V
- Electrical Wiring Diagrams and Component Locations, Passat 1998 On

Test requirements:
- Battery voltage OK.
- Fuses 15 and 31 OK.
- Ground connections OK:

NOTES:
- The specified values are valid for ambient temperatures from 0 °C to 40 °C (32° to 104 °F).
- If the measured values differ from the specified values, determine the malfunction using the appropriate wiring diagram.
- If the measured values differ only slightly from the specified values, clean the sockets and connectors of the test unit and test leaks and repeat test.
- Before replacing components, check the respective wiring and connectors. Repeat resistance tests when the values are below 10 Ohms.

Testing:
See Test requirements as listed above.

NOTE: The TCM is located in front of the right-hand seat under the carpet in the footwell.






- Switch ignition OFF and remove multi-pin connector from TCM in direction of arrow.






- Connect multi-pin connector to test box VAG 1598/20 -1- by swinging in -2- and then locking -3-.
- Using test box VAG 1598/20 the wiring can be checked according to the wiring diagram.






After electrical checks:
- Connect multi-pin connector to transmission control unit -J217- connector housing -1-, by swinging in -2- and then locking -3-.