Hyundai Tucson: Heated Oxygen Sensor (H02S)
Description
Heated Oxygen Sensor (HO2S) consists of the zirconium and the alumina and is installed on upstream and downstream of the Manifold Catalyst Converter (MCC).
In order that this sensor normally operates, the temperature of the sensor tip is higher than 370ºC (698º F). So it has a heater which is controlled by the ECM duty signal.
When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
Specification
Bank 1 / Sensor 1
Bank 1 / Sensor 2
Circuit Diagram
Harness Connector HO2S Bank 1 / Sensor 1
HO2S Bank 1 / Sensor 2
Inspection
- Turn the ignition switch OFF.
- Disconnect the HO2S connector.
- Measure resistance between HO2S heater terminals 2 and 5. B1 / S1 Measure resistance between HO2S heater terminals 3 and 4. B1 / S2
- Check that the resistance is within the specification.
Bank 1 / Sensor 1
Bank 1 / Sensor 2
Removal
- Turn ignition switch OFF and disconnect the battery negative (-) terminal.
- Disconnect the heated oxygen sensor connector (A).
- Remove the heated oxygen sensor (B).
Tightening Torque : 39.2 - 49.0 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.1 lb-ft)
WARNING
Note that the SST (Part No. : 09392-2H100 or 09392-1Y100) is useful when removing the heated oxygen sensor.
HO2S Bank 1 / Sensor 1
HO2S Bank 1 / Sensor 2
Installation
WARNING
- Install the component with the specified torques.
- Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
WARNING
- DON'T use a cleaner, spray, or grease to sensing element and connector of the sensor because oil component in them may malfunction the sensor performance.
- Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on).
- Install in the reverse order of removal.
READ NEXT:
Exhaust Gas Temperature Sensor (EGTS)
Description
Exhaust Gas Temperature Sensor (EGTS) is installed on Gasoline Particulate
Filter (GPF) senses the
temperature of exhaust gas flowing into. When pre-determined engine condition is
set, ECM burns
soot gathered in GPF with exhaust ga
EGR Temperature Sensor
Description
EGR temperature sensor is used for temperature measurement and EGR bypass
valve function
diagnosis as well as thermal protection of EGR system.
Specification
Type : Thermistor type
Circuit Diagram
Harness Connecto
Accelerator Position Sensor (APS)
Description
Accelerator Position Sensor (APS) is installed on the accelerator pedal
module and detects the rotation
angle of the accelerator pedal. The APS is one of the most important sensors in
engine control system,
so it consists of the tw
SEE MORE:
Passenger Air Bag (PAB)
Components Location
Passenger Air Bag (PAB)
Removal
Set the front tires straight-ahead.
Disconnect the batteiy negative terminal.
WARNING
After disconnecting the cables, wait at least 3 minutes.
Remove the glove box.
(Refe
Reverse Parking Distance Warning (PDW)
Reverse Parking Distance Warning will
help warn the driver if an obstacle is
detected within a certain distance when
the vehicle is moving in reverse at low
speeds.
Detecting sensor
[2] : Rear ultrasonic sensors
Refer to the picture above
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual
