System Inspection

Coolant Level Inspection
1. Check the cooling system coolant level.
2. Is the coolant in the reservoir at the proper level?
  YES
  - Go to 2
  NO
  - Repair or add engine coolant as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
Thermostat Inspection
1. Check if the thermostat bypass valve is stuck in the open position or if the correct type of thermostat was installed. Replace thermostat as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
2. Check the valve opening temperature of the thermostat
  Specification (Valve opening temperature): 80~84°C (176~183°F):
3. If the opening temperature is not as specified, Replace thermostat as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  If OK, go to next step as below.

ECT Sensor Inspection

Ignition "OFF"
Disconnect ECTS connector

Measure resistance between terminals 1 and 3 of the sensor connector (Component side)

SPECIFICATION:

DTC P0116 RESISTANCE AND TEMPERATURE SPECIFICATIONS

Temp. (°C)	Temp. (°F)	Resistance (Ω)
-20	-4	14.1 ~ 16.8
0	32	Approx. 5.8
20	68	2.3 ~ 2.6
40	104	Approx. 1.2
60	140	Approx. 0.6
80	176	Approx. 0.3

Fig 1: Measuring Resistance Between Terminals 1 And 3 Of Sensor Connector

G05363796

Courtesy of HYUNDAI MOTOR CO.

Is resistance within the specification?
YES
- Go to TERMINAL AND CONNECTOR INSPECTION .
NO
- Check ECTS for contamination, deterioration, or damage. Substitute with a known-good ECTS and check for proper operation. If the problem is corrected, replace ECTS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.