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: Driver Airbag (DAB) Module and Clock Spring Description and operation
Description
Driver Airbag (DAB) is installed in the steering wheel and electrically connected
to SRSCM via the clock spring.
It protects the driver by deploying the airbag when frontal crash occurs. The
SRSCM determines deployment of the Driver Airbag (DAB).
...
Kia Niro 2017 (DE HEV) Service Manual: Side Airbag (SAB) Module Repair procedures
Removal
The side airbag cannot be disassembled from the seat back assembly, so
replace the seat back assembly when replacing the side airbag.
1.
Disconnect the battery negative terminal, ...
