Volkswagen Passat 1995 Official Factory Repair Manual page 2082

Engine components,checking
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU08.24.2
Engine components,checking
Oxygen sensor heater for oxygen
sensor before Three Way Catalytic
Converter (TWC), checking
Recommended special tools and equipment
V.A.G 1526 multimeter or V.A.G 1715
multimeter
V.A.G 1594 connector test kit
Wiring diagram
Test requirements
The respective fuses of Heated Oxygen Sensor
(HO2S) -G39- 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.
Page 1 of 59
24-27
12/6/2004