A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
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Using a multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) (G186) at Throttle Valve Control Module (J338) terminals 3 to
5 for resistance.
Specified value: 1.0 to 5.0 ohms (at 20° C)
If the specification was not obtained:
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Replace the Throttle Valve Control Module ( J338 ). Refer to Fuel Injection and Ignition Repair Information.
If the specification was obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. Refer to Fuel Injection and Ignition Repair Information
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: Service and Repair.
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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 T60 terminals for resistance.