Kia Niro: Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and operation
| Description |
Located in the engine coolant passage of the cylinder head, Engine Coolant Temperature Sensor (ECTS) detects the engine coolant temperature. The ECTS uses a thermistor with resistance in proportion to the temperature.
The electrical resistance of the ECTS decreases as the temperature increases, and increases as the temperature decreases. The reference +5V is supplied to the ECTS via a resistor in the ECM. That is, the resistor in the ECM and the thermistor in the ECTS are connected in series. When the resistance value of the thermistor in the ECTS changes according to the engine coolant temperature, the output voltage also changes.
During cold engine operation, the ECM increases the frequency of fuel injection and controls the ignition timing using the information of engine coolant temperature to avoid engine stalling and improve drivability.
Engine Coolant Temperature Sensor (ECTS) Specifications
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
-20
...
Engine Coolant Temperature Sensor (ECTS) Schematic diagrams
Circuit Diagram
ECTS [Water Temperature Control Assembly]
Harness Connector
ECTS [EGR Cooler Tube]
Harness Connector
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Exhaust Heat Recovery System(EHRS) Repair procedures
Removal and Installation
1.
Remove the engine room under cover.
(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
2.
Drain the engine coolant.
(Refer to Cooling System - "Coolant")
...
Kia Niro (DE HEV) Owners Manual: Disc brakes wear indicator
When your brake pads are worn and new pads are required, you will hear a high-pitched
warning sound from your front brakes or rear brakes (if equipped). You may hear
this sound come and go or it may occur whenever you depress the brake pedal.
Please remember that some driving conditions or clim ...
