volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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Check wires between test box and 3-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohms

Vehicles with engine code AHA

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Also test lines at socket 67 for shorts to sockets 60 and 68.
Specified value: Infinity Ohms

Vehicles with engine code ATQ

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Also check wires for short circuit to each other.
Specified value:  Infinity Ohms

Continuation for all vehicles

If no malfunctions are found in wires:

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