A8L Quattro Sedan V8-4.2L (BVJ) (2007)
The LED does not flicker:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
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, Removing and Installing ]See: Computers
and Control Systems/Engine Control Module/Service and Repair.
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Using a Multimeter, Check the Ignition Coil electrical harness connector to theEngine Control Module (ECM) (J623) electrical harness connector
T60 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 the specified values were obtained:
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Replace the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Removing and Installing ]See: Computers and Control
Systems/Engine Control Module/Service and Repair.
Assembly is performed in the reverse order of removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ].