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: Gear Actuator Assembly Description and operation
Description
•
The gear actuator comprises the shift motor and select solenoid.
•
Gear actuator shift motor and select solenoid use signals from TCM to
control the gear.
...
Kia Niro 2017 (DE HEV) Service Manual: Smart Cruise Control (SCC) Unit-Radar Repair procedures
Removal
1.
Remove the front bumper.
(Refer to Body - "Front Bumper Cover")
2.
Disconnect the SCC radar & unit connector (A).
3.
Remove the SCC radar & ECU (B) after loosening the mounting bolts.
...
