Golf GL L4-2.0L (AEG) (2001)
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Connect VAG1527B voltage tester using auxiliary cables from VW1594 to harness connector terminals of cylinder 3.
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Operate starter and check voltage supply for No.3 cylinder fuel injector.
LED must flicker.
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Repeat check at fuel injector harness connector for No.2 cylinder.
If fuel injectors of cylinder No.1 or 4 do not click:
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Separate fuel injector harness connector of cylinder No.1 and 4.
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Connect VAG1527B voltage tester using aux. cables from VW1594 to harness connector terminals of cylinder 1.
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Operate starter and check voltage supply for No.1 cylinder fuel injector.
LED must flicker.
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Repeat check at fuel injector harness connector for No.4 cylinder.
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Switch ignition off.
If the LED does not flicker on any cylinder:
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Connect diode test lamp to cylinder 4 fuel injector harness connector, terminal -1- and Ground (GND).
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Initiate output Diagnostic Test Mode (DTM) again and activate No.4 cylinder fuel injector.
LED must light up.
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Repeat check at fuel injector harness connectors for cylinders 3-1.
If the LED does not light up:
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Switch ignition off.