volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

With Manufacturer's Scan Tool|Page 3504 > < With Manufacturer's Scan Tool|Page 3502
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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.

With Manufacturer's Scan Tool|Page 3504 > < With Manufacturer's Scan Tool|Page 3502