Kia Cee'd: Engine Control System / Heated Oxygen Sensor (HO2S) Description and operation

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.

The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Re ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1]   Item Specification Heater Resistance (Ω) 2.4 ~ 4.0 [20°C(68°F)] ...

Other information:

Kia Cee'd JD Service Manual: Door Scuff Trim Repair procedures
Replacement [5Door]    • Put on gloves to protect your hands.    • ...

Kia Cee'd JD Owners Manual: Operating conditions
Select RCTA (Rear Cross Traffic Alert) in "User Settings" under "Driving Assist" on the instrument cluster. The system will turn on and stand by to be activated. Select RCTA again, to turn the system off. If the vehicle is turned off and on again, the RCTA system will return ...