Volkswagen Passat 1995 Official Factory Repair Manual page 1813

VAG 1551 Scan Tool (ST), connecting and selecting 'Engine Electronics' address word 01
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07....
- During Output DTM blow into auxiliary hose (in
direction of throttle housing).
Valve must open and close
If the purge regulator valve does not open and
close:
- Disconnect 2-pin connector at valve and connect
VAG 1527B voltage tester with test leads from
VW 1594 to disconnected connector.
The LED must flash
If LED flashes:
- Replace EVAP canister purge regulator valve.
If LED does not flash:
- Switch ignition off.
- Connect VAG 1598/18 test box to ECM wiring
harness (arrow).
- Check wiring between test box and 2-pin
connector for open circuit according to wiring
diagram.
Terminal 1 and test box socket 31
Resistance: Max. 1.5 ohms ( )
- Check wiring between 2-pin connector terminal
2 and central electrical system for open circuit
according to wiring diagram. Resistance: Max.
1.5 ohms ( )
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12/6/2004