EuroVan (2.5L)
- Disconnect Hall Effect sensor wiring harness connector at ignition distributor. Connect DVOM, using test leads from Adapter Kit (VW 1594), to outer terminals of connector.
- Turn ignition on. DVOM reading must be 10 volts minimum. If voltage is not okay, repair open Hall Effect sensor voltage supply circuit. If circuit is okay, replace ECM. If voltage is okay, reconnect Hall Effect sensor.
- Turn ignition off. Disconnect cold-start injector and fuel injector wiring harness at fuel rail. Use LED Tester (US 1115) to backprobe center and Brown/White outer wire at Hall Effect sensor connector. Crank engine and observe LED tester. If LED tester does not flicker, replace Hall Effect sensor.