Hyundai i-30: Engine Control System / Ambient Temperature Sensor (ATS)

Hyundai i30 (PD) 2018-2025 Service Manual / Engine Control / Fuel System / Engine Control System / Ambient Temperature Sensor (ATS)

Description and operation

Description

Ambient Temperature Sensor (ATS) is installed on the front-end module and senses the ambient temperature. ECM receives not only the intake air temperatue but also the ambient air temperature informations at the same time to control the intake air quantity precisely provided through the turbo charger. The electrical resistance of the thermistor decreases as the temperature increases, and increases as the temperature decreases This sensor has a Negative Temperature Coefficient (NTC) and its resistance is in inverse proportion to the temperature.

Specifications

Specification

Temperature [°C (°F)]	Resistance (kΩ)
-40 (-40)	841.2 - 1019.3
-20 (-4)	263.8 - 306.5
0 (32)	92.4 - 102.8
10 (50)	57.0 - 62.2
20 (68)	36.2 - 38.8
40 (104)	15.3 - 16.7
50 (122)	10.3 - 11.4
60 (140)	7.1 - 8.0
80 (176)	3.5 - 4.0

Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the ATS connector.

3.	Measure resistance between the ATS terminals 1 and 2 [B1/S1].

Check that the resistance is within the specification.

Specification : Refer to "Specification"

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

3.	Disconnect the ATS connector (A), and then removing the sensor (B).

Installation

•	Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

1.	Install in the reverse order of removal.

Intake Air Temperature Sensor (IATS)

Description and operation Description Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature...

Boost Pressure Sensor (BPS)

Description and operation Description The Boost Pressure Sensor (BPS) is installed on the intercooler assembly and measures the pressure of the compressed air in turbocharger...

Other information:

Hyundai i30 (PD) 2018-2025 Service Manual: Release residual pressure in fuel line

Release Residual Pressure in Fuel Line • There may be some residual pressure even after "Release residual pressure in fuel line" work, so cover the hose connection with a shop towel to prevent residual fuel from spilling out before disconnecting any fuel connection...

Hyundai i30 (PD) 2018-2025 Owner's Manual: Heating and air conditioning

1. Start the engine. 2. Set the mode to the desired position. To improve the effectiveness of heating and cooling, select: - Heating: - Cooling: 3. Set the temperature control to the desired position. 4. Set the air intake control to the outside (fresh) air position...