Hyundai Santa Fe: Engine Control System / Heated Oxygen Sensor (HO2S). Description and operation
Hyundai Santa Fe (TM) 2019-2025 Service Manual / Engine Control/Fuel System / Engine Control System / 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. It 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...
Heated Oxygen Sensor (HO2S). Specifications
Specification
HO2S [Bank 1 / Sensor 1] [Euro-V]
Item
Specification
Heater Resistance (Ω)
2...
Other information:
Hyundai Santa Fe (TM) 2019-2025 Service Manual: Heated Steering wheel. Repair procedures
Inpection 1. Measure a resistance of NTC and Heated pad. – NTC resistance - 10.0 kΩ ± 5 % (25 °C) – Heated pad resistance - 1...
Hyundai Santa Fe (TM) 2019-2025 Service Manual: Center Pillar Trim. Repair procedures
Replacement [Center pillar lower trim] • Put on gloves to prevent hand injuries. • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...
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Air bag collision sensors
WARNING
To reduce the risk of an air bag deploying unexpectedly and causing serious injury or death:
Do not hit or allow any objects to impact the locations where air bags or sensors are installed. Do not perform maintenance on or around the air bag sensors. If the location or angle of the sensors is altered, the air bags may deploy when they should not or may not deploy when they should. Installing bumper guards with nongenuine Hyundai or non-equivalent parts may adversely affect the collision and airbag deployment performance. Press the Engine Start/Stop button to the OFF or ACC position and wait for 3 minutes when the vehicle is being towed to prevent inadvertent air bag deployment. Have all air bag repairs performed by an authorized HYUNDAI dealer.
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