Hyundai Venue: Heated Oxygen Sensor (HO2S) / Description and operation
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed
on upstream and downstream of the Warm up Catalytic Converter (WCC).
After it compares oxygen consistency of the atmosphere with the exhaust gas,
it transfers the corresponding voltage signal to the ECM. When A/F ratio is
rich or lean, it generates approximately +1V or 0V respectively.
In order that this sensor normally operates, the temperature of the sensor tip
must be higher than predetermined temperature. 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]
Item
Specification
Heater Resistance (Ω)
Approx...
Other information:
Replacement
1.
Pull down the front door window glass to the lowest level by pressing
the power window glass switch.
2.
Loosen the mounting screw and remove the rear door belt outside weartherstrip
(A)...
Removal
[Rear drum brake type]
1.
Loosen the wheel nuts slightly.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the rear wheel and tire (A) from the rear hub...
Categories

This warning light informs the driver the following situations.
-- Forward Collision-Avoidance Assist system malfunction (if equipped)
-- Forward Collision-Avoidance Assist radar blocked (if equipped)
-- Blind-Spot Collision Warning system malfunction (if equipped)
-- Blind-Spot Collision Warning radar blocked (if equipped)
-- Lamp malfunction (if equipped)
-- High Beam Assist malfunction (if equipped)
-- Tire Pressure Monitoring System (TPMS) malfunction (if equipped)
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