Volkswagen Passat 1995 Official Factory Repair Manual page 2091

Engine components,checking
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Voltage supply for Mass Air Flow (MAF)
sensor, checking
- Disconnect 4-pin connector -1- from Mass Air Flow
(MAF) Sensor -G70- (-2-).
- Connect multimeter to terminals 1 + 3 of connector
for voltage measurement.
- Start engine, and let run at idle.
Specified value: 11.0 to 15.0 V
- Switch ignition off.
If there is no voltage:
- Check wire between 4-pin connector terminal 3
and Fuel Pump (FP) Relay -J17- for open circuit
according to wiring diagram.
Wire resistance: max. 1.5
- Check wire to terminal 1 of 4-pin connector for
open circuit according to wiring diagram:
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
If voltage supply and wires are OK:
- Check wires of Mass Air Flow (MAF) sensor
Page 24-37 .
Page 10 of 59
24-36
12/6/2004