Volkswagen Passat 1995 Official Factory Repair Manual page 1940

Multiport fuel injection and ignition system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.24.1
Engine speed (RPM) sensor, checking
Special tools, testers and auxiliary items
VAG 1598/18 test box
Multimeter (Fluke 83 or equivalent)
Connector test kit VW 1594
Wiring diagram
Test sequence
- Disconnect white 3-pin connector from engine
speed sensor (arrow).
- Connect VAG 1598/18 test box to ECM wiring
harness (arrow).
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12/6/2004