Volkswagen Passat 1995 Official Factory Repair Manual page 2085

Engine components,checking
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU08.24.2
Oxygen sensor heater for oxygen
sensors behind Three Way Catalytic
Converter (TWC), 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
Test requirements
The respective fuses of Heated Oxygen Sensor
(HO2S) -G108- must be OK:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Fuel Pump (FP) Relay -J17- must be OK, check:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Ground (GND) connections between engine,
transmission, and chassis must be OK.
Ignition switched off.
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12/6/2004