Passat Syncro Wagon V6-2.8L (ATQ) (2000)
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Disconnect 8-pin connector -1- from throttle valve control module -2-.
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Connect multimeter to connector terminals 4 + 7 for voltage measurement.
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Switch ignition on.
Specified value: at least 4.5 V
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Switch ignition off.
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Connect multimeter to connector terminals 3 + 7 for voltage measurement.
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Switch ignition on.
Specified value: at least 9.0 V
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Switch ignition off.
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Connect test box to control module wiring harness, connect test box for wiring test. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box,
Connecting For Wiring Test
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Check wires between test box and 8-pin connector for open circuit according to wiring diagram:
Terminal 1 + socket 66
Terminal 2 + socket 59
Terminal 3 + socket 69
Terminal 4 + socket 62
Terminal 5 + socket 75
Terminal 7 + socket 67
Terminal 8 + socket 74
Wire resistance: max: 1.5 Ohms
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Also check wires for short circuits to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinity Ohms