Volkswagen Passat 1995 Official Factory Repair Manual page 1938

Multiport fuel injection and ignition system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.24.1
- Disconnect 2-pin connector (arrow) at Intake Air
Temperature (IAT) sensor -G72-.
- Check wiring between test box and 2-pin
connector for open circuit according to wiring
diagram.
Terminal 1 and test box socket 36
Terminal 2 and test box socket 33
Resistance: max. 1.5 ohms
- Check wire between ECM connector and 2-pin
connector terminal 2 for short circuit to wire
terminal 1 and to vehicle Ground (GND), according
to wiring diagram.
Terminal 2 and test box socket 36
Specification: ohms
- Additionally, check both wires for short circuit to
battery positive (B+).
Specification: ohms
If no malfunction in wire is detected:
- Perform resistance measurement on IAT sensor -
G72- terminals 1 and 2, resistance values
24-17 , Fig. 1 .
If the specification is not attained:
- Replace Intake Air Temperature (IAT) sensor -
G72-.
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