Kia Optima Hybrid: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Description

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It 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 (-) terminal. 2. Drain the engine coolant (Refer to “Cooling System” in EM group). 3. Remove the radiator upper hose (Refer ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (?)2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) A/F Ratio (?)Output Voltage(V)RICHApprox. 0.92LEANApprox. ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Hazard Lamp Switch Repair procedures

Inspection 1. It will be able to diagnose defects of hazard switch with GDS quickly. GDS can operates actuator forcefully, input/output value monitoring and self diagnosis. 2. Select model and "BCM". 3. Select the "SJB" to check. 4. Select "Current data", if you will check current data of hazard switch. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation

Description Burglar Alarm State [B/A State] B/A StateDescriptionDISARM 1) In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound and flashing. 2) If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM", B/A state is ...