Hyundai Elantra (CN7): Button Engine Start System / Components and components location
| Component Location |
| 1. Smart key unit (IBU) 2. Interior antenna 2 3. outside door handle | 4. Interior antenna 1 5. FOB Key 6. Door antenna |
| 1. Bumper antenna | 2. Trunk antenna |
DescriptionSystem OverviewThe System offers the following features:– Human / machine interface through a 1-stage button, for terminal switching and engine start.
Components and components location Component Repair procedures Removal1.Disconnect the negative(-) battery terminal.2.Remove the AVN Head unit.
Other information:
Hyundai Elantra (CN7) 2021-2026 Service Manual: Start/Stop Button
Components and components location Component Repair procedures Removal1.Disconnect the negative(-) battery terminal.2.Remove the AVN Head unit.(Refer to Body Electrical System - "AVN(Audio Video Navigation) head unit")3.Loosen the mounting screws and remove the start/stop button (A).
Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting
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
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