Hyundai Ioniq (AE): Low Voltage DC/DC Converter (LDC) / Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Control System / Low Voltage DC/DC Converter (LDC) / Description and operation

Description
The Low Voltage DC/DC is integrated into the HPCU. It charges the auxiliary battery as a substitute for generator by converting the high voltage (DC 270V) from the high voltage battery into low voltage (DC 12V).

    Specification Item Specification Input Voltage (V)200 - 310Output Voltage (V)12.8 - 14.7Rated Power (kW)1.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Temperature Sensor. Repair procedures

    Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.Specification Evaporator core temperature [°C (°F)] Resistance [KΩ]

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

    Inspection1.Turn the ignition switch ON.2.Connect the GDS.3.Emit intensive light toward the photo sensor using a lamp, and check the output voltage change.4.The voltage will rise with higher intensive light and reduce with lower intensive light.1. Auto light signal2.

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