Golf L4-2.0L (AZG) (2004)
Test
Vehicles with engine code AEG
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Check wires between test box and 3-pin connector for open circuit according to wiring diagram.
Terminal 1 + socket 67
Terminal 2 + socket 63
Terminal 3 + socket 56
Wire resistance: max: 1.5 Ohms
Vehicles with engine code AVH, AZG
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Check wires between test box and 3-pin connector for open circuit 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 circuit to each other, to vehicle Ground (GND) and to B+. Specified value: Infinite 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-.