A6 Quattro Sedan V6-3.2L (BKH) (2005)
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Remove the screws - arrows - and electronics box cover from the electronics box.
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Remove the Engine Control Module (ECM) Power Supply Relay (J363) - 3 - from the electronics box.
If the manufacturers test box is being used, perform the following step.
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Connect the Test Box 105 Pin (VAG1598/42) with Adapter Cable (1598/39-1) => Fuel Injection and Ignition 24 Diagnosis and Testing.
If the manufacturers test box is not being used, perform the following step.
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Remove the Engine Control Module (ECM) (J623) => [ Engine Control Module, Replacing ] See: Engine Control Module/Service and
Repair/Engine Control Module, Replacing.
Checking voltage supply
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Switch the ignition on.
Using a Multimeter, check the electrical harness connector terminals to the Engine Control Module (ECM) (J623) electrical harness connector
terminals for voltage.
