| Components (1) |

| No | Connector A | Connector B | Connector C |
| 1 | BAT (+)_Signal | Driver's door antenna_GND | - |
| 2 | BAT (+)_Power | Driver's door antenna_Power | - |
| 3 | IGN 1 | - | - |
| 4 | IGN 2_Relay output | B-CAN (High) | SSB LED (OFF) |
| 5 | IGN 1_Relay output | B-CAN (Low) | SSB LED (IGN) |
| 6 | Assist door antenna_GND | Wheel speed sensor | SSB LED (ACC) |
| 7 | Interior antenna 2_GND | AT : 'P' signal input MT : Clutch switch signal input | SSB Illumination (+) |
| 8 | Trunk antenna_GND | - | SSB Illumination (-) |
| 9 | Interior antenna 1_GND | C-CAN (Low) | Immoblizer antenna_GND |
| 10 | Bumpper antenna_GND | C-CAN (High) | Immoblizer antenna_Power |
| 11 | ACC | GND 1 | - |
| 12 | IGN2 | GND 2 | Start signal feedback |
| 13 | ACC_Relay output | Assist door switch_signal | Stop lamp fuse |
| 14 | Starter_Relay output | Driver's door switch_signal | Brake switch |
| 15 | - | - | Immoblizer indicator |
| 16 | Assist door antenna_Power | EMS CAN | Exterior buzzer |
| 17 | Interior antenna 2_Power | ESCL CAN | |
| 18 | Trunk antenna_Power | RPM_Input | |
| 19 | Interior antenna 1_Power | SSB switch2 | |
| 20 | Bumpper antenna_Power | SSB switch1 |
Smart Key Repair procedures
Smart Key Unit Schematic DiagramsHyundai Elantra AD (2016-2020) Owners Manual: Owner Maintenance. Owner Maintenance Schedule
WARNING
Performing maintenance work on a vehicle can be dangerous. If you lack sufficient
knowledge and experience or the proper tools and equipment to do the work, have
it done by an authorized HYUNDAI dealer.
ALWAYS follow these precautions for performing maintenance work:
Park your vehi ...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. Windshield wiper arm & blade2. Wiper & washer switch3. Windshield washer hose & nolzzle4. Washer motor & linkage assembly5. Washer motor6. Washer reservoir7. Wiper/Washer relay (Built - in PCB block)8. Washer fluid level sensor
...