Volkswagen Passat 1995 Official Factory Repair Manual page 1994

Multiport fuel injection and ignition system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.28.1
Checking activation
- Remove fuse 18.
WARNING!
During the following test do not touch the
terminals of the ignition coil or test leads.
- Switch ignition off.
- Connect VAG 1527B voltage tester with test leads
from VW 1594 to terminals of disconnected 5-pin
connector.
Terminals 5 and 2 (ignition output 1)
Terminals 5 and 3 (ignition output 3)
Terminals 5 and 4 (ignition output 2)
- Operate starter and check ignition signal from
Engine Control Module (ECM).
LED must flicker
- Switch ignition off.
If the LED does NOT flicker:
- Replace ECM -J220-
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