volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

With Manufacturer's Scan Tool|Page 3742 > < With Manufacturer's Scan Tool
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Using multimeter and adapter cables from VW1594, measure supply voltage between terminals 1 + 5 of disconnected harness connector.

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Switch ignition on.
Specified value: min. 11.5 V

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Switch ignition off.

If no voltage is present:

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Check wire between 5-pin harness connector terminal -5- and relay plate for open circuit according to wiring diagram.
Wire resistance: max. 1.5 ohms

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Check wire between 5-pin harness connector terminal -1- and Ground (GND) for open circuit according to wiring diagram.
Wire resistance: max. 1.5 ohms

If there is no malfunction in the supply voltage:

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Check activation.

Checking activation

WARNING!
During the following test do not touch the connecting parts of the ignition coils or test cables.

With Manufacturer's Scan Tool|Page 3742 > < With Manufacturer's Scan Tool