Ground Circuit inspection

IG "OFF".
Disconnect Fuel Level Sensor connector.
IG "ON".
Measure the voltage between terminal 4 of Fuel Level Sensor harness connector and ground. (A)
Measure the voltage between terminal 1 and 4 of Fuel Level Sensor harness connector. (B)
1. Specification : "A" - "B" = Below 200mV
  
  Fig 1: Measuring Voltage Between Terminal 1 And 4 Of Fuel Level Sensor Harness Connector
  Courtesy of KIA MOTORS AMERICA, INC.
Is the measured voltage within specification?
YES
1. Go to "COMPONENT INSPECTION " procedure.
NO
1. Repair Open in ground circuit and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.