Eos (1F7) L4-2.0L Turbo (BPY) (2007)
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If necessary, repair the faulty wiring connection.
If the specification was obtained:
Checking Ground (GND) activation
If the manufacturers test box is being used. Perform the following step.
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Install the Test Box 105 Pin (VAG1598/42).
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 J623, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module J623, Removing and Installing.
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Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector terminal
2 to the Motronic Engine Control Module (ECM) (J623) electrical harness connector T94 terminal 7 for an open circuit according to the wiring
diagram.
Specified value: 1.5 ohms max.
If the specification was not obtained:
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Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring and if the voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module J623, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module J623, Removing and Installing.
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Install the right vehicle floor cover.
Final procedures
After the 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 ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09 [ (BPY) (BUB) ]/Diagnostic Mode 03 - Read DTC Memory.