Electrical Testing Instructions and Requirements
ELECTRICAL TEST
Special tools, testers:
- Test box VAG 1598/18
- Adapter set VAG 1594
- Digital multimeter, Fluke 83, VAG 1526 or equivalent
Additional information:
- Service and Repair, Automatic transmission 01N
- Wiring Diagrams and Component Locations
Test requirements:
- Battery positive voltage (B+) OK.
- Fuses 11, 15 and 31 OK.
- Check Ground (GND) connections for transmission:
- Check Ground connections for corrosion and poor contact; repair if necessary.
- Ground connection point is located in engine compartment, left side below battery.
- Check battery Ground strap and Ground strap between battery and transmission.
CAUTION! Select the appropriate measuring range at the tester before connecting the test leads to avoid damaging the electronic components.
NOTES:
- The specified values are valid for ambient temperatures ranging from 0 °C...40 °C (32...104 °F).
- If the measured values differ from the specified values, determine the cause by using the wiring diagrams.
- If the measured values differ only slightly from the specified values, clean sockets and connectors of the test equipment and test leads, then repeat the test. Before replacing a particular component, test the wiring and connections and, particularly if specified values are below 10 ohms, repeat the resistance measurement.
ELECTRICAL CHECK
Test requirements, refer to "Electrical Test" above.
The transmission control module is located in front of the right-hand front seat under the carpet in the footwell.
- Switch ignition OFF, disconnect multi-pin connector in direction of arrow and remove connector from control module.
- Connect VAG 1598/18 test box onto multi-pin connector -1- and lock, in direction of arrow -2-.
Using test box VAG 1598/18 the wiring can be checked by using the wiring diagram.
After electrical checks:
- Connect multi-pin connector to control module -J217- and lock.
NOTE: When connecting ensure that the guides (arrows) are engaged on control module pins.