TT Quattro Coupe V6-3.2L (CBRA) (2008)
If the specification was obtained:
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Check the voltage supply of the Throttle Valve Control Module (J338) to the Engine Control Module (ECM) (J623).
Checking voltage supply and wiring
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Switch the ignition on.
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Using a Multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) (G186) at the Throttle Valve Control Module (J338) electrical
harness connector terminals 2 to 6 for voltage.
Specified value: at least 4.5 V
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Switch the ignition off.
If the specification was obtained:
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Replace the Throttle Valve Control Module ( J338 ).
If the specification was not obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. See: Engine Control Module/Testing and Inspection/Engine Control Module
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Replacing ] See: Engine Control Module/Testing and
Inspection/Engine Control Module.
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Using a Multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) (G186) at Throttle Valve Control Module (J338) electrical
harness connector terminals to the Engine Control Module (ECM) ( J623) electrical harness connector T40 terminals for resistance.