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Hyundai Equus: Heated Oxygen Sensor (HO2S) Schematic Diagrams
| Circuit Diagram |

Heated Oxygen Sensor (HO2S) Troubleshooting
Heated Oxygen Sensor (HO2S) Repair proceduresAuto Defogging Sensor Repair procedures
Inspection
To inspect and diagnose the sensor, refer to Self-Diagnosis procedure and DTC guide.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Using a screwdriver or remov ...
Operating HomeLink®
To operate, simply press and release the programmed HomeLink® button. Activation
will now occur for the trained device (i.e. garage door opener, gate operator, security
system, entry door lock, h ...
Checking the coolant level
WARNING Removing radiator cap
Never attempt to remove the radiator cap while the engine is operating
or hot. Doing so might lead to cooling system and engine damage and could result
in ser ...