volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Control Module (ECM) Voltage Supply, Checking|Page 4419 > < Engine Control Module (ECM) Voltage Supply, Checking|Page 4417
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Observe safety precautions which apply to road tests. 

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Press -> button.

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Press buttons -0- and -6- to select "End data transfer" function 06. Press -Q- button to confirm input.

If expected values are not obtained:

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Check DTC memory, repair any malfunctions and then erase DTC memory.

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Test throttle valve control module. See: Electronic Throttle Control Module/Testing and Inspection 

Engine Control Module (ECM) Voltage Supply, Checking|Page 4419 > < Engine Control Module (ECM) Voltage Supply, Checking|Page 4417