Hyundai Ioniq (AE): Engine Control System / Heated Oxygen Sensor (HO2S). Schematic diagrams

Circuit Diagram

    SpecificationHO2S [Bank 1 / Sensor 1] Item Specification Heater Resistance (Ω)2.4 - 4.0 [20°C (68°F)]HO2S [Bank 1 / Sensor 2] (Binary Type) A/F Ratio (λ) Output Voltage (V) RICH0.

    Inspection1.Turn the ignition switch OFF.2.Disconnect the HO2S connector.3.Measure resistance between the HO2S terminals 2 and 5 [B1/S1].4.Measure resistance between the HO2S terminals 3 and 4 [B1/S2].

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Specifications

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    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

    Diagnosis with GDS1.REAR CORENER RADAR system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis.2.Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.

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