RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
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If necessary, repair the faulty wiring connection.
If the specified value 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 Motronic Engine Control Module (ECM) ( J623). Refer to => [ Engine Control Module 1, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module 1, Removing and Installing.
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Using a Multimeter, Check the Camshaft Adjustment Valve electrical harness connector terminal 1 to the Motronic Engine Control Module
(ECM) electrical harness connector for an open circuit.
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and voltage supply was not OK:
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Replace the Motronic Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module 1, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module 1, Removing and Installing.
Final procedures
After repair work, the following work steps must be performed in the following sequence: