TT Coupe L4-2.0L Turbo (CCTA) (2008)
‹› Throttle Drive (for Electronic Power Control (EPC)) (G186)
‹› Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) (G187)
‹› Throttle Drive Angle Sensor 2 (for Electronic Power Control (EPC)) (G188)
The Throttle Valve Control Module (J338) cannot be serviced separately and must be serviced as a unit.
Test procedure
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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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End diagnosis and 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 -.