Golf GL L4-2.0L (AZG) (2001)
If the specification is not attained:
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Check wiring between 2-pin connector contact 1 and fuse holder using wiring diagram.
If the specification is obtained:
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Remove wiper arms and cowl panel
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Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.
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Check wiring for open circuit between test box and 2-pin connector using wiring diagram.
Contact 2+socket 39
Wire resistance: Max. 1.5 Ohms
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Additionally check wires for short to one another.
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Additionally check the wiring for short to battery positive or Ground.
If no fault is detected in the pipes:
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Replace engine control module.