Hyundai Sonata LF: Body Electrical System / Windshield Deicer

Hyundai Sonata LF 2014-2019 Service Manual / Body Electrical System / Windshield Deicer

Components and Components Location

Component Location

Windshield deicer system prevent windshield wiper from freezing in the winter season. It consists of deicer in the lower part of windshield, switch and relay. Body control module receives an input signal from the front defroster switch, then controls relay.

When the front defroster switch is switched ON, and the engine is running with generator output, the deicer will go ON for a maximum of 20 minutes.

1. Windshield deicer relay Smart Junction Block (SJB)
2. Windshield deicer switch

3. Deicer connector
4. Windshield deiecr

Windshield Deicer Repair procedures

Inspection

1.	Remove the cowl top cover. (Refer to Body - "Cowl Top Cover")

2.	Disconnect the windshield deicer connector (A).

3.	Check for continuity between the terminals of deicer lines.

Turn the ignition switch ON and the windshield deicer switch ON, then measure the voltage between the terminals of harness side deicer connector.

OK : approx. Battery voltage (12V)

Windshield Deicer Switch Repair procedures

Inspection

The body electrocal system 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

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

3.	Select the "Smart Junction Box (SJB)" to check the windshield deicer.

4.	Select the "Current Date" menu to search the current state of the input/output data. The input/output data for the sensors corresponding to the 'Smart Junction Box (SJB)' can be checked.

5.	Select "Actuation Test", if you want to check the Smart Junction Box (SJB) data operation forcefully.

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the heater and A/C controll unit. (Refer to Heating, Ventilation, Air conditioning - "Heater & A/C Control Unit (Dual)")

Installation

1.	Install the heater and A/C control unit.

2.	Connect the negative (-) battery terminal.

Power Window Switch Repair procedures

Inspection Diagnosis with GDS 1. The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). The diagnostic system (GDS) provides the following information...

Rear Glass Defogger

Components and Components Location Component Location 1. Rear glass defogger relay Smart Junction Block (SJB)2. Rear glass defogger switch3. Rear glass defogger Rear Glass Defogger Printed Heater Repair procedures Inspection Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: AVN Remote Controller Schematic Diagrams

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Hyundai Sonata LF 2014-2019 Service Manual: DCT Control Module (TCM) Schematic Diagrams

1. TCM Connector and Terminal Function 2. TCM Terminal Function Connector [A] PinDescriptionPinDescription1Clutch Actuator (Clutch Motor 1 (ODD)_Phase V)17-2Clutch actuator (Clutch Motor 2 (EVEN) Phase V)18Clutch Actuator (Clutch Motor 1 (ODD)_HALL 1)3Select Actuator (Shift Solenoid 2 (EVEN)_Ground)19Clutch Actuator (Clutch Motor 1 (ODD)_Supply)4Select Actuator (Shift Solenoid 1 (ODD) Push)20Select Actuator (Shift Solenoid 1 (ODD)_Sensor Supply)5Clutch Actuator (Clutch Motor 1 (ODD)_Phase U)21Select Actuator (Shift Solenoid 2 (EVEN)_Sensor Supply)6Clutch Actuator (Clutch Motor 2 (EVEN)_Phase U)22Select Actuator (Shift Solenoid 2 (EVEN)_Sensor Ouput)7Select Actuator (Shift Solenoid 1 (ODD)_Ground)23Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 2)8Select Actuator (Shift Solenoid 2 (EVEN)_ Pull)24Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 3)9Clutch Actuator (Clutch Motor1 (ODD)_Phase W)25Clutch Actuator (Clutch Motor 2 (EVEN)_Ground)10Clutch Actuator (Clutch Motor 2 (EVEN)_Phase W)26Select Actuator (Shift Solenoid 1 (ODD)_Sensor Output)11Select Actuator (Shift Solenoid 1 (ODD) Pull)27-12Select Actuator (Shift Solenoid 2 (EVEN) Push)28Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 1)13Clutch Actuator (Clutch Motor 1 (ODD)_HALL 2)29Clutch Actuator (Clutch Motor 2 (EVEN)_Supply)14Clutch Actuator (Clutch Motor (ODD)_HALL 3)30Select Actuator (Select Solenoid 1 (ODD)_Sensor Ground)15Clutch Actuator (Clutch Motor 1 (ODD)_Ground)31Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ground)16-32- Connector [B] PinDescriptionPinDescription1-35-2-36-3ON / START Input37-4Paddle Shift (Up) Switch signal38-5Inhibitor Switch "P" Input signal39-6Inhibitor Switch "R" Input signal40-7Inhibitor Switch "D" Input signal41Shift Actuator (Shift Motor 2 (EVEN) _HALL 2)8Sports mode "Down" shift42Shift Actuator (Shift Motor 2 (EVEN) _HALL 3)9Clutch Speed Sensor (EVEN) Ground43Inhibitor Switch "M" Input signal10-44CAN1 Communication Port1 High11-45CAN1 Communication Port1 Low12-46-13Shift Actuator (Shift Motor 1 (ODD) _HALL 2)47-14Shift Actuator (Shift Motor 1 (ODD) _HALL 3)48Flex ray High (BP)15-49Input Speed Supply 1 (ODD)16-50Input Speed Signal 1 (ODD)17Battery Power Low VBD 51-18Paddle Shift Down signal52-19Shift Lever Select Switch53-20Inhibitor Switch "N" Input signal54Shift Actuator (Shift Motor 2 (EVEN) _Supply)21Sports mode "Up" shift55Shift Actuator (Shift Motor 2 (EVEN) _HALL 1)22-56Shift Actuator (Shift Motor 2 (EVEN) _Sensor Ground)23Input Speed Supply 2 (EVEN)57Power Ground 1 for High Current Modules245V spare supply output58Power Ground 2 for High Current Modules25-59Shift Actuator (Shift Motor 2 (EVEN)_Phase W)26Shift Solenoid 1 Position Sensor Output60Shift Actuator (Shift Motor 1 (ODD)_Phase W)27Select Actuator (Shift Motor 1 (ODD)_HALL 1)61 Power Ground 3 for High Current Modules28Select Actuator (Shift Motor 1 (ODD)_Sensor Ground)62-29-63Shift Actuator (Shift Motor 2 (EVEN)_Phase V)30CAN2 Communication Port2 High64Shift Actuator (Shift Motor 1 (ODD)_Phase V)31CAN2 Communication Port2 Low65Motor Supply Voltage 1 from Direct Battery32-66Motor Supply Voltage 2 from Direct Battery33-67Shift Actuator (Shift Motor 2 (EVEN)_Phase U)34Flex ray bus, BM68Shift Actuator (Shift Motor 1 (ODD)_Phase U) 3...