Passat GLS Wagon L4-1.8L Turbo (AUG) (2001)
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Check for open circuits in wires between test box and connector according to wiring diagram.
Terminal 1 + socket 108
Terminal 2 + socket 98
Terminal 4 + socket 101
Wire resistance: maximum: 1.5 Ohms
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Check wires for shorts among one another.
If no malfunctions are found in the wires and there was voltage between terminals 1 + 3:
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Check function
If no errors are found in wires and there was no voltage between terminals 1 + 3:
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Replace Engine Control Module (ECM):
Refer to Computers and Control Systems.
Checking function
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Connect VAG1598/31 test box to control module wiring harness and to control module.
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Re-connect connector at charge air pressure sensor -G31-.
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Connect multimeter to socket 101 and socket 108 for voltage measurement.
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Start engine and measure voltage.
Specification: 1.80 to 2.00 volts
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Bring engine to RPM by depressing accelerator pedal suddenly.
Specification: 2.00 to 3.00 volts
If specified values are not obtained:
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Replace the charge air pressure sensor -G31-.