Eos (1F7) V6-3.2L (BUB) (2008)
If the specification was not obtained:
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Replace the 2- Heated Oxygen Sensor (HO2S) (G39) or the 1- Heated Oxygen Sensor (HO2S) 2 (G108).
If the specification was obtained:
Checking voltage supply
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) electrical harness connector terminal 4 to ground (GND) for voltage.
Specified value: Battery voltage.
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 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 (VAG1598/31).
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module J623, Replacing ] See: Powertrain
Management/Computers and Control Systems/Engine Control Module/Service and Repair/Engine Control Module J623, Replacing.
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) electrical harness connector to the Engine Control Module (ECM) (J623) electrical
harness connector T121 for an open circuit.
Specified value: 1.5 ohms max.