Hyundai Sonata: 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 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 “Intake ...
Heated Oxygen Sensor (HO2S). Specifications
Specification
HO2S [Bank 1/Sensor 1]
Item
Specification
Heater Resistance (Ω)
2.5 ~ 4.0 [20°C(68°F)]
HO2S [Bank 1/Sensor 2 ...
See also:
Room lamp
To turn the room lamp ON or OFF, push the switch or lens.
CAUTION
Do not leave the lamp switches on for an extended period of time when the
vehicle is not running. ...
Battery replacement
The transmitter uses a 3 volt lithium battery which will normally last for several
years. When replacement is necessary, use the following procedure.
1. Insert a slim tool into the slot and gen ...
Cowl Side Trim Repair procedures
Replacement
•
Put on gloves to protect your hands.
•
When prying with a flat-tip screwdriver or use a prying trim
tool, wrap it with pr ...