volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Electronic Throttle Control Module|Testing and Inspection|Page 2584 > < Electronic Throttle Control Module|Testing and Inspection|Page 2582
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Continuation:

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Switch ignition off.

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Connect VAG 1598/18 test box to ECM wiring harness (arrow).

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With throttle valve closed connect multimeter to measure resistance at test box sockets 10 and 33.
Specification: max. 5.0 ohms.

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Slowly open throttle valve.
Specification: infinite ohms.  

If the specifications are not attained:

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Separate 8-pin connector to throttle valve control module -J338-.

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Check wiring between test box and 8-pin connector for open circuit according to wiring diagram.
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Terminal 3 and test box socket 10

Electronic Throttle Control Module|Testing and Inspection|Page 2584 > < Electronic Throttle Control Module|Testing and Inspection|Page 2582