4-Pin Heated Oxygen Sensor

4-Pin Heated Oxygen Sensor

• Do not repair the oxygen sensor wires. Repairing may result in malfunctions.

• Use the faulty sensor as a guide for installing all of the accompanying attachments, cable ties or marking bands.

• If necessary, identify the heated oxygen sensor (HO2S) using the protective tube. Refer to => [ Oxygen Sensor Unit Protective Pipes ] Oxygen Sensor Unit Protective Pipes.

- Remove the faulty oxygen sensor.

- Lay both of the oxygen sensor next to each other so the sensor housings are the same level.





- Tie the excess length of the sensor (approximately 50 to 250 mm) back so it is the same length as the faulty sensor and secure it with cable ties - 1 -.





- Check if the oxygen sensor connector housing is compatible with the vehicle electrical system side.

- If necessary, replace the vehicle electrical system connector with the provided oxygen sensor connector housing, refer to => [ Contacts in Contact Housing, Repairing ] Contacts In Contact Housing, Repairing.

• Only replace the connector housing on older vehicles. The connector housing is correct on new vehicles.

• Check the pin assignment. The pins in the new connector housing are color coded.

• The packaging for the new oxygen sensor contains additional information.

- Install the new oxygen sensor in the vehicle.