Passat Wagon L4-2.0L (ABA) (1995)
Specification: Mm. 9 volts If no voltage is present: Switch ignition off.
Check wire for open circuit between 3-pin connector terminal 1 and ground, according to wiring diagram. Wire resistance: Max. 1.5 ohms
Connect VAG 1598/18 test box to ECM wiring harness.
Check wire for open circuit between test box socket 38 and 3-pin connector terminal 3, according to wiring diagram. Wire resistance: Max. 1.5 ohms
Checking activation
Disconnect harness connector for fuel injectors 1 and 4, and remove fuse 18.
Connect VAG 1527B voltage tester to connector terminals 2 and 3 using adapter cables from VW 1594 and VW 1594/15 adapter.
Operate starter and check ignition signal from Motronic ECM.
‹› LED must flicker
Switch ignition off if LED does not flicker:
Connect VAG 1598/18 test box to ECM wiring harness.
Check wire for open circuit between test box socket 8 and 3-pin connector terminal 2, according to wiring diagram. Wire resistance: Max. 1.5 ohms
Additionally check wires for short to one another. Specification: zero ohms, (no continuity)
If no wiring malfunction is detected and voltage was present between terminals 1 and 3:
Replace Motronic ECM J220
If the voltage supply and activation is OK: Re-connect 3-pin connector and high-voltage cable to coil.
Connect VAG 1527B voltage tester to coil terminals land 15.