Passat GLS 4Motion V6-2.8L (ATQ) (2002)
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Check wires between test box and 3-pin connector for open circuits according to wiring diagram.
Terminal 1 + socket 108
Terminal 2 + socket 90
Terminal 3 + socket 82
Wire resistance: max: 1.5 Ohms
Continuation for all vehicles
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Also check wires for short circuits to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinity Ohms
If no malfunctions are found in wires:
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Remove sensor and check sensor wheel for secure fit, damage, and run-out.
NOTE: There is a larger-sized gap on the sensor wheel. This gap is the reference mark and does not mean that the sensor wheel is damaged.
If nothing seems to be wrong with the sensor wheel:
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Replace Motronic Engine Control Module (ECM) -J220-.