Beetle L4-2.0L (AEG) (2000)
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Basic voltage checking
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Remove protective cover -arrows- and disconnect black 4-pin harness connector to Oxygen sensor G39 (before Three Way Catalyst).
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Switch Fluke 83 multimeter to Voltage range
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Connect Fluke 83 multimeter between ECM harness connector terminals 3 + 4 using jumper wires from VW 1594 adaptor kit.
