Checking activation: Notes
- Pull connectors -1- off connection -2- of all fuel injectors.
- Connect VAG1527 diode test lamp to terminals 2 + 3 of connector.
- Operate starter and test ignition signal from Engine Control Module (ECM).
LED should flicker.
- Repeat test between terminals 2 + 4 and 2 + 5.
If LED does not flicker:
- Connect test box to control module wiring harness. See TEST BOX, CONNECTING FOR WIRING TEST .