Jetta SportWagen L5-2.5L (CBUA) (2009)
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Perform a preliminary check to verify the customers complaint. Refer to --> [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Start diagnosis
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Connect the scan tool.
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Switch ignition on.
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Using the scan tool, check the throttle valve position (absolute) at idle stop:
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Slowly depress the accelerator pedal to Wide Open Throttle (WOT) stop while observing the percentage display. The percentage display must
increase uniformly.
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Using the scan tool, check the throttle valve position (absolute) at Wide Open Throttle (WOT) stop:
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Switch ignition off.
If the specified values are not obtained:
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Remove the Throttle Valve Control Module (J338) far enough so that the electrical connector terminals are reached.
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Disconnect the Throttle Valve Control Module (J338) electrical harness connector - arrow -.
Checking resistance
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Using a multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) (G186) at the Throttle Valve Control Module (J338) terminals
3 to 5 for resistance.