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Circuit Diagram

WARNING: This page is about a different car, the 2020 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
G13351381Courtesy of KIA MOTORS AMERICA, INC.
Pin Function
Connector A Connector B Connector C
1 Battery (+) IGN2 relay output Immobilizer antenna (+) output
2 Battery (+) IGN1 relay output Wheel speed signal input
3 Interior antenna 1 (-) output - SSB switch1 signal input
4 Bumper antenna (-) output - -
5 Interior antenna 2 (-) output ESCL communication ESCL Unlock switch input
6 Assist door antenna (-) output EMS communication Sunroof position switch input
7 Trunk antenna (-) output B-CAN (High) Brake switch input
8 Driver's door antenna (-) output B-CAN (Low) IGN2 signal input
9 - P-CAN (Low) IGN1 signal input
10 SSB Illumination (+) output P-CAN (High) Starter relay output
11 External buzzer output - Immobilizer antenna (-) output
12 ESCL (+) output ACC relay output RPM signal input
13 - - SSB switch2 signal input
14 Interior antenna 1 (+) output Ground Driver's door switch signal input
15 Bumper antenna (+) output - Assist door switch signal input
16 Interior antenna 2 (+) output SSB LED (ACC) output Start signal feedback input
17 Assist door antenna (+) output SSB LED (IGN) output Stop lamp fuse signal input
18 Tailgate antenna (+) output - ACC signal input
19 Driver's door antenna (+) output - -
20 - SSB Illumination (-) output Ground
21 ESCL Enable output -  
22 ESCL (-) output Wireless charging module output