Hyundai Equus: Heated Oxygen Sensor (HO2S) Troubleshooting
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Troubleshooting
| Signal Waveform |
Fig.1) The signal waveforms of front HO2S(the upper) and heater(the lower) at idle
Fig.2) The signal waveforms of rear HO2S(the upper) and heater(the lower) at idle
Fig.3) Typical waveforms of front HO2S(the upper) and rear HO2S(the lower).
Heated Oxygen Sensor (HO2S) Specifications
Specification
A/F Ratio (x)Output Voltage(V)RICH0.6 ~ 1.0LEAN0 ~ 0.4
ItemSpecificationHeater Resistance (x)Approx. 9.0 [21°C(69.8°F)]
...
Heated Oxygen Sensor (HO2S) Schematic Diagrams
Circuit Diagram
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See also:
Instrument Cluster Description and Operation
Description
Communication Network Diagram
Refer to the "Body Network System" for the abbreviation information.
Function
1.
High speed CAN communication (C-CAN)
(1)
Use ...
Muffler Components and Components Location
Components
1. Front muffler (LH/RH)2. Catalytic converter3. Center muffler4. Main muffler (LH/RH)
...
Heater Unit Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
3.
When the engine is cool, drain the engine coolant fro ...
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