Monitor SCANTOOL Data

Ignition "ON" & Engine "OFF".
Disconnect ECTS connector.
Connect Scantool and monitor the "COOLANT TEMP. SNSR (V)" parameter on the Scantool data list.
Jumper the terminals 1 and 3 of the sensor harness connector together.
Specification: Approx. 0V

Fig 1: Scan Tool Display - COOLANT TEMPERATURE SENSOR
Courtesy of KIA MOTORS AMERICA, INC.
Is ECTS parameter near the specified value?
YES
- Possibility of sensor malfunction. Go to "COMPONENT INSPECTION " procedure.
NO
- Go to next step as below.
Jumper the terminal 1 of the sensor harness connector to chassis ground.
Read the "COOLANT TEMP. SNSR (V)" parameter on the Scantool.
Is displayed ECT data near the specified value.?
YES
- Possibility of open in ECTS ground circuit Go to "GROUND CIRCUIT INSPECTION " procedure.
NO
- Possibility of open or short to battery in ECTS signal circuit. Go to "SIGNAL CIRCUIT INSPECTION " procedure.