Passat Wagon L4-1781cc 1.8L Turbo (AEB) (1998)
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Press -> button.
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Press 0 and 6 buttons to select Function 06: "End data output"
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Press Q button to enter input
Continuation of check when Display shows partly open throttle
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Disconnect 8 pin harness connector from Throttle Body Control Module.
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Bridge connector terminals 3 + 7 using jumper wires from VW 1594 and observe display.
If display shows idling:
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Press -> button.
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Press 0 and 6 buttons to select Function 06: "End data output"
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Press Q button to enter input
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Switch OFF ignition.
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Replace Throttle Body Control Module J338.
If display shows Partially Open Throttle:
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Press -> button.
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Press 0 and 6 buttons to select Function 06: "End data output"
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Press Q button to enter input
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Switch OFF ignition.
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Check Voltage supply of Throttle Body Control Module and wiring to Control Module. See below in article.
If Voltage supply and wiring OK:
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Replace Engine Control Module
Continuation when display constantly shows idling
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Disconnect 8-pin harness connector from Throttle Body Control Module.
If Display shows Partially Open Throttle:
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Press -> button.
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Press 0 and 6 buttons to select Function 06: "End data output"
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Press Q button to enter input
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Switch OFF ignition.
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Replace Throttle Body Control Module J338.