Hyundai Sonata: Smart Key System / Smart Key Unit Components and Components Location
| 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 | - | ? |
| 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
Smart Key Code Saving
1.
Connect the DLC cable of GDS to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on GDS.
2.
Select the vehicle model a ...
Smart Key Unit Schematic Diagrams
Circuit Diagram
...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Antenna Repair procedures
Inspection
Glass Antenna Test
1.
Wrap aluminum foil (A) around the tip of the tester probe (B) as shown.
2.
Touch one tester probe to the glass antenna terminal (A) and
move the other tester probe along the antenna wires to check that
continuity exists.
Glass Antenna Repair
&nb ...
Hyundai Sonata LF 2014-2019 Owners Manual: Charging System Warning Light
If this warning light comes on while the engine is running, the battery is not
being charged. Immediately turn off all electrical accessories. Try not to use electrically
operated controls, such as the power windows. Keep the engine running; starting
the engine will quickly discharge the battery ...
