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Eos (1F7) V6-3.2L (BUB) (2008)

Powertrain Management > Computers and Control Systems > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Functions, Checking > Page 3033

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If the specification was not obtained:

-

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

-

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:

-

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).

-

Check the electrical harness connector for damage, corrosion, lose or broken terminals.

-

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.

-

Install the Test Box 105 Pin (VAG1598/31).

If the manufacturers test box is not being used. Perform the following step.

-

Remove the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module J623, Replacing ] See: Engine Control Module/Service
and Repair/Engine Control Module J623, Replacing.

-

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.

Powertrain Management > Computers and Control Systems > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Functions, Checking > Page 3033

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