Volkswagen Passat 1995 Official Factory Repair Manual page 1391

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.G1526 Multimeter or V.A.G1715
multimeter
V.A.G1594 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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6/12/2004