New Beetle GLS L4-2.0L (AVH) (2001)
Specification: min. 11.5 V
If the specifications are not obtained:
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Check wiring between 4-pin connector terminals 1 and 2 to central electrics using wiring diagram.
If the specifications are obtained:
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Remove inner plenum chamber cover, left:
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Connect test box V.A.G 1598/31 to control module wiring harness. Engine control module is not connected by this action.
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Check wiring for open circuit between test box and 4-pin connector for open circuit using wiring diagram.
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Terminal 3 + socket 55
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Terminal 4 + socket 56
Wire resistance: Max. 1.5 Ohms
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Also check wires for short to one another.
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Also check wiring for short to battery positive or Ground.
If no wiring problem is detected:
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Replace Engine Control Module (ECM).