Signal Circuit Inspection

Check Voltage
1. Ignition "OFF"
2. Disconnect FLS sensor connector.
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between terminal 1 of FLS harness connector and chassis ground.
  Specification: Above 6.5V
  
  Fig 1: Measuring Voltage Between Terminal 1 Of FLS Harness Connector And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured voltage within specifications?
  Yes
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Go to "Check for short to battery in harness" as below.
Check for short to battery in harness
1. Ignition "OFF"
2. Disconnect FLS sensor connector.
3. Ignition "ON" and Engine "OFF"
4. Measure resistance between terminal 1 and 5 of FLS harness connector.
  Specification: Infinite
  
  Fig 2: Measuring Resistance Between Terminal 1 And 5 Of FLS Harness Connector
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured resistance within specifications?
  Yes
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check for short to battery in harness.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.