S4 Quattro Wagon V8-4.2L (BHF) (2008)
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End diagnosis and switch ignition off.
If the specified values are not obtained:
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Remove the rear engine cover - arrows -.
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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 - 6 -.
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.
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:
