Hyundai Elantra (CN7): Integrated Body Control Unit (IBU) / Schematic diagrams

Circuit Diagram
With Smart Key

Without Smart Key

    Specifications Items Specifications Rated voltageDC 12VOperating voltageDC 9 - 16VOperating temperature-40°C to 85°C (-22°F to 185°F)parastic current4.

    Removal1.Disconnect the negative (-) battery terminal.2.Remove the glove box housing cover.(Refer to Body - "Glove Box Housing Cover")3.Remove the IBU unit (A) after loosening mounting nuts.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Description and operation

    DescriptionSystem OverviewThe System offers the following features:– Human / machine interface through a 1-stage button, for terminal switching and engine start.– Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting

    Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se

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