Kia Carens: 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. (Refer to En ...

Heated Oxygen Sensor (HO2S) Specifications

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

Other information:

Kia Carens RP (2013-2018) Owners Manual: Interior light

CAUTION Do not use the interior lights for extended periods when the engine is not running. It may cause battery discharge. WARNING Do not use the interior lights when driving in the dark. Accidents could happen because the view may be obscured by interior lights. Interior lamp AUTO cut When all ...

Kia Carens RP (2013-2018) Service Manual: Relay Box (Engine Compartment) Repair procedures

Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay box. Power Relay (Type A)    ...