Volkswagen Passat 1995 Official Factory Repair Manual page 2048

EVAP canister system
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Leak Detection Pump (LDP), checking
Recommended special tools and equipment
V.A.G 1526 multimeter or V.A.G1715
multimeter
V.A.G 1594 connector test kit
Wiring diagram
Requirements
The respective fuses of Leak Detection Pump
(LDP) -V144- must be OK:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Ground (GND) connections between engine and
chassis must be OK.
Ignition switched off.
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12/6/2004