Volkswagen Passat 1995 Official Factory Repair Manual page 1913

Multiport fuel injection and ignition system
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Continuation
- Switch ignition off.
- Connect VAG 1598/18 test box to ECM wiring
harness (arrow).
- With throttle valve closed connect multimeter to
measure resistance at test box sockets 10 and 33.
Specification: max. 5.0 ohms
- Slowly open throttle valve.
Specification: ohms
If the specifications are not attained:
- Separate 8-pin connector to throttle valve control
module -J338-.
- Check wiring between test box and 8-pin
connector for open circuit according to wiring
diagram.
Terminal 3 and test box socket 10
Terminal 7 and test box socket 33
Resistance: max. 1.5 ohms
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