Hyundai i-30: Blower / Power Mosfet

Hyundai i30 (PD) 2018-2024 Service Manual / Heating, Ventilation and Air Conditioning / Blower / Power Mosfet

Description and operation

Description

It is installed to the DATC and adjusts the fan rpm by precisely controlling the voltage applied to the blower motor.

Repair procedures

Inspection

1.	Turn the ignition switch ON.

2.	Manually operate the control switch and measure the voltage of the blower motor.

Select the control switch to raise the voltage until high speed.

Specification

Fan Speed (Manual)	Motor Voltage (V)
1	3.8 ± 0.5
2	5.0 ± 0.5
3	6.1 ± 0.5
4	7.3 ± 0.5
5	8.5 ± 0.5
6	9.7 ± 0.5
7	10.9 ± 0.5
8	Battery

Diagnosis With GDS

The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).

※ The diagnostic system (GDS) provides the following information.

(1) Self diagnosis : Checking the failure code (DTC) and display.

(2) Current data : Checking the system input/output data state.

(3) Actuation test : Checking the system operation condition.

(4) Additional function : Other controlling such as he system option and zero point adjustment.

2.	Select the 'Car model' and the system to be checked in order to check the vehicle with the tester.

3.	Select the 'Current data' menu to search the current state of the input / output data. The input / output data for the sensors corresponding to the Power Mosfet can be checked.

4.	To perform compulsory operation on Power Mosfet input factors, select "ACTUATION TEST".

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad center panel. (Refer to Body - "Crash Pad Center Panel")

3.	Remove the passenger's side shower duct (A) after loosening the screw.

4.	Disconnect the power mosfet connector (A) and then remove the power mosfet (B) after loosening the mounting screws.

5.	To install, reverse the removal procedure.

Blower Motor

Repair procedures Inspection 1. Connect the battery voltage and check the blower motor rotation. 2...

Blower Resistor (Manual)

Repair procedures Inspection 1. Measure the resistance between the terminals. 2. The measured resistance is not within specification, the blower resistor must be replaced...

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