Engine Speed Signal, Checking

Engine Speed Signal, Checking

Vehicles with multitronic 01J:

NOTE: The engine speed signal is output at terminal 37 of the engine control module only in vehicles with multitronic 01J.

- Connect test box VAG 1598/31 to wiring harness for engine control module; do not connect engine control module. Wiring and Component Testing Using VAG1598/31 Test Box
- Check for open circuit and short to positive or Ground in following wiring connections:
- Test box VAG 1598/31 -� Socket 37
- Repair any open/short circuit as necessary.

If no wiring malfunction is detected:
- Check CAN bus. Testing and Inspection