Touareg V8-4.2L (BHX) (2004)
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Switch ignition on.
Specified value: at least 4.5 V
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Switch ignition off.
If there is no voltage:
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Check wires according to wiring diagram.
Checking wiring
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Connect test box to control module wiring harness , connect test box for wiring test.
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Check wires between test box and 3-pin connector for open circuit according to wiring diagram.
Wire resistance: max. 1.5 ohms
Cylinder bank 1
Cylinder bank 2