Tailgate Switch

Check for continuity between the Trunk lid open switch terminals.
[with Back View Camera]

Fig 1: Checking Continuity Between Trunk Lid Open Switch Terminals (With Back View Camera)
Courtesy of HYUNDAI MOTOR AMERICA
1. Ground
2. Tailgate Switch
  [without Back View Camera]
  
  Fig 2: Checking Continuity Between Trunk Lid Open Switch Terminals (Without Back View Camera)
  Courtesy of HYUNDAI MOTOR AMERICA
  1. Ground (Tailgate)
  2. Tailgate Switch
  3. Ground (Back View Camera)
  4. Power
  5. V-OUT
  6. V-GND
If continuity is not specified, inspect the switch

Fig 3: Trunk Lid Open Switch Terminals Continuity Chart
Courtesy of HYUNDAI MOTOR AMERICA