S6 V8-4.2L (BBD) (2004)
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Remove cover for E-box, plenum chamber (arrows).
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Pry off Engine Control Module (ECM) retaining bracket (arrow) using a screwdriver and set control module aside.
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Disconnect voltage supply relay -3-.
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Perform the following tests marked with dots:
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Check wire connection from 3-pin relay carrier in E-box, plenum chamber, position 2, terminal 8 to harness connector at ignition coil terminal 1.
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Check Motronic Engine Control Module (ECM) voltage supply relay - J271-.
Checking Activation Of Power Output Stages
