Hyundai Palisade: Rear Glass Defogger / Rear Glass Defogger Switch

Hyundai Palisade (LX2) 2020-2025 Service Manual / Body Electrical System / Rear Glass Defogger / Rear Glass Defogger Switch

Repair procedures

Diagnosis with Diagnostic tool

In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).

The diagnostic system (Diagnostic tool) provides the following information.

(1)	Fault Code Searching : Checking failure and code number (DTC)

(2)	Data Analysis : Checking the system input/output data state

(3)	Actuation test : Checking the system operation condition

(4)	S/W Management : Controlling other features including system option setting and zero point adjustment

2.	If diagnose the vehicle by Diagnostic tool, select "DTC Analysis" and "Vehicle".

3.	Select the 'Data Analysis' and 'Car model'.

4.	Select the 'IBU_BCM' to search the current state of the input/output data.

5.	To forcibly actuate the input value of the module to be checked, select option 'Actuation Test'.

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the audio unit or the AVN head unit. (Refer to Audio - "Audio Unit") (Refer to AVN System - "AVN Head Unit")

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

Installation

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

2.	Install the audio unit or the AVN head unit.

3.	Connect the negative (-) battery terminal.

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...

Power Tailgate Module

Other information:

Hyundai Palisade (LX2) 2020-2025 Owner's Manual: If you decide to pull a trailer

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Hyundai Palisade (LX2) 2020-2025 Service Manual: Heater & A/C Control Unit (Rear)

Components and components location Component Connector Pin Function Connector PIN No Pin Function Connector PIN No Pin Function A 1 Battery A 17 IGN2 2 ISG B+ 18 IGN1 3 ILL+ (TAIL) 19 Blower Motor (+) 4 Sensor Ground REF (+5V) 20 - 5 Mode Control Actuator Feedback 21 Mosfet (DRAIN F/B) 6 Temperature Actuator Feedback 22 Mosfet (GATE) 7 Mode Control Actuator (Vent) 23 Heater Switch _ LH 8 Mode Control Actuator (Defrost) 24 Indicator (HIGH) _ LH 9 Temperature Control Actuator (Cool) 25 Indicator (MID) _ LH 10 Temperature Control Actuator (Warm) 26 Indicator (LOW) _ LH 11 Detent out (-) 27 Heater Switch _ RH 12 K - Line 28 Indicator (HIGH) _ RH 13 LIN Left 29 Indicator (MID) _ RH 14 Lin Right 30 Indicator (LOW) _ RH 15 - 31 Sensor Ground 16 ILL - (RHEO) 32 Ground Repair procedures Replacement • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...