| Circuit Diagram |

Heated Oxygen Sensor (HO2S) Specifications
Heated Oxygen Sensor (HO2S) Repair proceduresHyundai Elantra AD (2016-2020) Service Manual: Heated Oxygen Sensor (HO2S) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 2 and 5 [B1/S1].
Measure resistance between the HO2S terminals 3 and 4 [B1/S2].
4.
Check that the resistance is within the specification.
Specification : ...
Hyundai Elantra AD (2016-2020) Owners Manual: System Operation
Ventilation
1. Select the Face Level mode.
2. Set the air intake control to the outside (fresh) air position.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
Heating
1. Select the Floor Level mode.
2. Set the air intake control to t ...