Hyundai Elantra (CN7): ABS(Anti-Lock Brake System) / Components and components location

Components

1. ABS control module (HECU)
2. Front wheel speed sensor
3. Rear wheel speed sensor
4. ESC OFF switch





    DescriptionThis specification applies to HCU(Hydraulic Control Unit) and ECU(Electronic Control Unit) of the HECU.(Hydraulic and Electronic Control Unit)This specification is for the wiring design and installation of ABS/ESP ECU.

    Standard Flow of Diagnostic TroubleshootingNotes With Regard To DiagnosisThe phenomena listed in the following table are not abnormal. Condition Explanation System check soundWhen starting the engine, a thudding sound can sometimes be heard coming from inside the engine compartment.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Repair procedures

    Diagnosis with Diagnostic tool1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system (Diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure and code number (DTC)(2)Data Analysis : Checking the system input/output data s

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

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