A8 Quattro Sedan V8-4.2L (BVJ) (2008)
Checking internal 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 specified value was not obtained:
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Replace the Throttle Valve Control Module (J338).
If the specified value was obtained:
Checking voltage
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Using a Multimeter, check the Throttle Valve Control Module (J338) electrical harness connector terminals 2 to 6 for voltage.