Volkswagen Passat 1995 Official Factory Repair Manual page 2181

Secondary Air Injection (AIR) system
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Secondary Air Injection (AIR) valve,
checking
Solenoid valve is closed when no voltage is
present.
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 Secondary Air Injection
(AIR) Solenoid Valve -N112- must be OK:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Ignition switched off.
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12/6/2004