Volkswagen Passat 1995 Official Factory Repair Manual page 1281

Components of engine, checking
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Oxygen sensor heater for
oxygen sensorbehind Three Way
Catalytic Converter (TWC),
checking
Recommended special tools and
equipment
V.A.G1526 Multimeter or V.A.G1715
multimeter
V.A.G1594 Connector test kit
Wiring diagram
Test requirements
The respective fuses of Heated
Oxygen Sensor (HO2S) 2 -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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6/12/2004