Trunk Lid/Tailgate Open Switch Inspection

Disconnect the negative battery terminal.
Remove the rear trunk lid trim, then remove the trunk lid switch from the trunk lid striker.

Fig 1: Illustrating Truck Lid Connector
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the 1P connector from the rear harness.
Check for continuity between the terminal and body while pushing the rod.

Fig 2: Testing Switch Continuity
Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Switch Continuity Chart
Courtesy of KIA MOTORS AMERICA, INC.