Hyundai Elantra: Blower / Power Mosfet
Description and operation
It is installed to the DATC and adjusts the fan rpm by precisely controlling the voltage applied to the blower motor.
Repair procedures
1. | Manually operate the control switch and measure the voltage of the blower motor. |
2. | Select the control switch to raise the voltage until high speed. 
Fan Speed
| Motor Voltage (V) (Manual)
| 1
| 3.8
| 2
| 5
| 3
| 6.1
| 4
| 7.3
| 5
| 8.5
| 6
| 9.7
| 7
| 10.9
| 8
| Battery +
|
|
1. | Disconnect the negative (-) battery terminal. |
2. | Disconnect the power mosfet connector (A) and then remove the power mosfet (B) after loosening the mounting screws. 
|
3. | To install, reverse the removal procedure. |
Repair procedures
Inspection1.Connect the battery voltage and check the blower motor rotation.Replacement1.Disconnect the negative (-) battery terminal...
Repair procedures
Inspection1.Measure the resistance between the terminals.2.The measured resistance is not within specification, the blower resistor must be replaced...
Other information:
[A] : High mounted stop lamp
1. Open the trunk.
2. Remove the socket by turning it
counterclockwise until the tabs on the
socket align with the slots.
3. Remove the bulb from the socket
by pressing it in and rotating it
counterclockwise until the tabs on the
bulb align with the slots in the socket...
Failure Diagnosis1.In principle, ESP and TCS controls are prohibited in case of ABS failure.2.When ESP or TCS fails, only the failed system control is prohibited.3.However, when the solenoid valve relay should be turned off in case of ESP failure, refer to the ABS fail-safe...