Jetta L4-1.8L Turbo (AWP) (2004)
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Connect multimeter using aux. cables from V.A.G 1594 to measure voltage between contact 2 and Ground.
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Switch ignition on.
Specification: At least 11.5 V
If the specification is not attained:
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Check wiring between 2-pin connector contact 2 and fuse holder using current flow diagram.
If the specification is obtained:
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Connect test box V.A.G 1598/31 to control module wiring harness. Engine control module remains disconnected.
