Optima & Magentis (Canadian) & Rio

Disconnect negative battery cable. Remove fan relay from engine compartment relay box.
Check for continuity between fan relay terminals No. 86 and 85. See Fig 1. Continuity should exist. Check for continuity between terminals No. 87 and 30. Continuity should not exist.
Apply 12 volts to terminal No. 86 and ground terminal No. 85. Check continuity between terminals No. 87 and No. 30. Continuity should exist. Replace relay if operation is not as specified.

Fig 1: Testing Cooling Fan Relay (Optima & Magentis (Canadian) & Rio)

Courtesy of KIA MOTORS AMERICA, INC.