Hyundai Tucson: 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.
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Remove the intake manifold.
(Refer to Engine Mechanical System - “Intake And Exhaust System”)
...
Specification
HO2S [Bank 1/Sensor 1] (Linear type)
ItemSpecificationHeater Resistance (x)2.4 ~ 4.0 [20°C(68°F)]
HO2S [Bank 1/Sensor 2] (Binary type)
A/F Ratio (x)Output Voltage(V)RICH0.6 ~ ...
Other information:
Hyundai Tucson (LM) 2010-2015 Service Manual: Description and Operation
Description
TREAD Lamp
-
Tire Under Inflation / Leak Warning.
1.
Turn on condition
A.
When tire pressure is below allowed threshold
B.
When rapid leak is detected by the sensor.
C.
Indicates that tire needs to be re-inflated to placard pressure / repaired.
2.
Turn off condi ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Remote key precautions
The remote key will not work if any of the following occur:
The key is in the ignition switch.
You exceed the operating distance limit (about 30 m [90 feet]).
The remote key battery is weak.
Other vehicles or objects may be blocking the signal.
The weather is extremely cold.
The remote ...