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: Auto Defogging Sensor Repair procedures
Inspection To inspect and diagnose the sensor, refer to Self-Diagnosis procedure and DTC guide. Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the auto defogging sensor cover (A) by pulling i ...

Kia Cee'd JD Owners Manual: Tailgate unlocking
■ 3 Door and 5 Door ■ Wagon 1.Carry the smart key. 2. Press the tailgate handle switch. 3. The tailgate will unlock. ✽ NOTICE Once the tailgate is opened and then closed, the tailgate will lock automatically. The button will only operate when the smart key is within 0.7 m ...