Hyundai Sonata: Smart Key System / Smart Key Unit Components and Components Location

Hyundai Sonata LF 2014-2019 Service Manual / Body Electrical System / 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: Alternator Repair procedures
Removal 1. Disconnect the battery negative terminal. 2. Loosen the mounting bolts (A) and then, turn the adjusting bolt (B) clockwise to loosen tension. 3. Remove the drive belt (A). 4. Disconnect the air compressor connector (A) and the alternator connector (B), and remove the cab ...

Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptomProbable causeRemedyThe set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed sensor circuitRepair the ...