Hyundai Azera: Engine Coolant Temperature Sensor (ECTS) Description and Operation
Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 Service Manual / Engine Control/Fuel System / Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and Operation
Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 Service Manual / Engine Control/Fuel System / Engine Control System / Engine Coolant Temperature Sensor (ECTS) Description and Operation
| Description |
Engine Coolant Temperature Sensor (ECTS) is located in the
engine coolant passage of the cylinder head for detecting the engine
coolant temperature. The ECTS uses a thermistor whose resistance changes
with 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.ion duration and controls the ignition timing using the
information of engine coolant temperature to avoid engine stalling and
improve drivability.
During cold engine operation, the ECM increases the fuel
injection duration and controls the ignition timing using the
information of engine coolant temperature to avoid engine stalling and
improve drivability.
Manifold Absolute Pressure Sensor (MAPS) Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the MAPS at idle and IG ON.
ConditionOutput Voltage (V)IG ONApprox. 4.44VIdleApprox. 0.75V
...
Engine Coolant Temperature Sensor (ECTS) Specifications
Specification
TemperatureResistance (k?)°C°F-40-4048.14-20-414.13 ~ 16.830325.7920682.31 ~ 2.59401041.15601400.59801760.32
...
See also:
Troubleshooting
Troubleshooting
SymptomPossible causeRemedySpeedometer does not operateCluster fuse (10A) blownCheck for short and replace fuseSpeedometer faultyCheck speedometerCAN line faultyCheck the TCUWirin ...
Repair procedures
Replacement
•
Be careful not to damage the fender and body.
•
When removing the clips, use a clip remover.
1.
Remove the head lamps.
(Refer to Body Elect ...
Components and Components Location
Component Location
1. Slide motor2. Front height motor3. Rear height motor4. Lumbar support motor5. Recline motor6. Cushion extension motor7. Lumbar support switch
...
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