Hyundai i-30: Blower / Power Mosfet

Hyundai i30 (PD) 2018-2025 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...

Other information:

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Hyundai i30 (PD) 2018-2025 Service Manual: Troubleshooting

Troubleshooting Symptom Possible cause Remedy Hard steering Improper front wheel alignment Excessive turning resistance of lower arm ball joint Low tire pressure No power assist Correct Replace Adjust Repair and replace Poor return of steering wheel to center Improper front wheel alignment Correct Poor or rough ride Improper front wheel alignment Malfunctioning shock absorber Broken or worn stabilizer Broken or worn coil spring Worn lower arm bushing Correct Repair or replace Replace Replace Replace the lower arm assembly Abnormal tire wear Improper front wheel alignment Improper tire pressure Malfunctioning shock absorber Correct Adjust or replace Replace Wandering Improper front wheel alignment Poor turning resistance of lower arm ball joint Loose or worn lower arm bushing Correct Repair Retighten or replace Vehicle pulls to one side Improper front wheel alignment Excessive turning resistance of lower arm ball joint Broken or worn coil spring Bent lower arm Correct Replace Replace Repair Steering wheel shimmy Improper front wheel alignment Poor turning resistance of lower arm ball joint Broken or worn stabilizer Worn lower arm bushing Malfunctioning shock absorber Broken or worn coil spring Correct Replace Replace Replace Replace Replace Bottoming Broken or worn coil spring Malfunctioning shock absorber Replace Replace Wheel /tire noise, vibration and harshness concerns are directly related to vehicle speed and are not generally affected by acceleration, coasting or decelerating...