Hyundai Palisade: Heater / Heater Unit

Hyundai Palisade (LX2) 2020-2025 Service Manual / Heating,Ventilation And Air Conditioning / Heater / Heater Unit

Components and components location
Component Location

Hyundai Palisade. Components and components location

1. Heater unit assembly

Components

Hyundai Palisade. Components and components location

1. Heater core assembly
2. Heater unit pad
3. Heater lower cover
4. Drain hose
5. Heater blind case
6. Heater case [RH]
7. Temperature actuator [RH]
 8. Heater case [LH]
9. FOOT Door assembly
10. Temperature door assembly
11. Mode actuator
12. PTC Heater
13. Vent door assembly [LH]
14. Vent door assembly [RH]
 15. DEF Door assembly
16. Heater unit pad
17. Heater pipe cover
18. Temperature actuator [LH]
19. Duct seal assembly
21. Evaporator assembly

Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
3.
When the engine is cool, drain the engine coolant from the radiator.
(Refer to Engine Mechanical System - "Coolant")
4.
Remove the cowl top cover.
(Refer to Body - "Cowl Top Cover")
5.
Loosen the mounting nut and remove the expension valve cover (A).
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m , 6.5 - 10.1 lb-ft)

Hyundai Palisade. Repair procedures
6.
Loosen the mounting bolts and separate the expension valve (A) from the evaporator core.
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m , 6.5 - 10.1 lb-ft)

Hyundai Palisade. Repair procedures
7.
Separate the heater hose (A).

Hyundai Palisade. Repair procedures
8.
Loosen the cowl cross bar assembly mounting bolts.

Hyundai Palisade. Repair procedures
9.
Remove the front seat assembly.
(Refer to Body - "Front Seat Assembly")
10.
Remove the floor console assembly.
(Refer to Body - "Floor Console Assembly")
11.
Remove the front pillar trim.
(Refer to Body - "Front Pillar Trim")
12.
Remove the cowl side trim.
(Refer to Body - "Cowl Side Trim")
13.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
14.
Remove the crash pad center panel.
(Refer to Body - "Crash Pad Cener Panel")
15.
Remove the steering column shroud lower panel.
(Refer to Body - "Steering Column Shroud Panel")
16.
Remove the steering wheel.
(Refer to Steering System - "Steering Wheel")
17.
Remove the multifunction switch.
(Refer to Body Electrical System - "Multifunction Switch")
18.
Lower the steering column after loosening the mounting bolts.
(Refer to Steering System - "Steering Column and Shaft")
19.
Remove the front door scuff trim.
(Refer to Body - "Door Scuff Trim")
20.
Remove the shift lever assembly.
(Refer to Automatic Transaxle System - "Shift Lever")
21.
Remove the accelerator pedal.
(Refer to Engine Control/Fuel System - "Accelerator Pedal")
22.
Separate the floor carpet (A) to obtain space for removing the rear heating duct.

Hyundai Palisade. Repair procedures
23.
Loosen the mounting nuts and remove the rear heating duct (A).

Hyundai Palisade. Repair procedures
24.
Disconnect the junction box connectors (A).

Hyundai Palisade. Repair procedures
25.
Disconnect the multi box connectors (A).
[LH]

Hyundai Palisade. Repair procedures

[RH]

Hyundai Palisade. Repair procedures
26.
Disconnect the multi box connectors (A).
[LH]

Hyundai Palisade. Repair procedures

[RH]

Hyundai Palisade. Repair procedures
27.
Remove the drain hose (A).

Hyundai Palisade. Repair procedures
28.
Remove the lower mounting bolt of the blower unit.
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m , 2.9 - 4.3 lb-ft)
[LH]

Hyundai Palisade. Repair procedures

[RH]

Hyundai Palisade. Repair procedures
29.
After loosening the bolts and nuts remove the crash pad and heater & blower unit assembly (A) together.

Hyundai Palisade. Repair procedures
30.
Disconnect the heater & blower unit connectors.
(1)
Loosen the mounting nuts, screws and remove the Surround view monitoring (SVM) unit (A).

Hyundai Palisade. Repair procedures
(2)
Separate the auto defoging actuator connector(A), evaporator sensor connector(B), temperature control actuator connector (C).

Hyundai Palisade. Repair procedures
(3)
Separate the temperature control actuator [RH] connector (A), power mosfet connector (B).

Hyundai Palisade. Repair procedures
(4)
Separate the blower motor connector (A) and loosen the mounting clip.

Hyundai Palisade. Repair procedures
(5)
Separate the intake actuator connector (A) , cluster ionizer connector (B) , mode actuator connector (C).

Hyundai Palisade. Repair procedures
31.
Loosen the heater & blower unit mounting bolt (A).
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m , 2.9 - 4.3 lb-ft)

Hyundai Palisade. Repair procedures
32.
Loosen the mounting nuts and remove the heater & blower unit (A) from the crash pad.
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m , 2.9 - 4.3 lb-ft)

Hyundai Palisade. Repair procedures
33.
Loosen the mounting screw and separate the heater unit (A) from the blower unit (B).
Tightening torque :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m , 2.9 - 4.3 lb-ft)

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures
34.
Install in the reverse order of removal.
Hyundai Palisade. Repair procedures   
•
Replace any damaged clips (or retainers or fasteners).
•
Make sure the hood latch release cable is connected properly.

    Heater

    ..

    Heater Core

    Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly...

    Other information:

    Hyundai Palisade (LX2) 2020-2025 Service Manual: Engine Control Module (ECM)


    Schematic diagrams ECM Terminal and Input / Output Signal ECM Terminal Function Connector [A] Pin No Description Connected to 1 Ignition Coil (Cylinder #4) control output Ignition Coil (Cylinder #4) 2 Injector (Cylinder #3) [High] control output Injector (Cylinder #3) 3 Injector (Cylinder #5) [High] control output Injector (Cylinder #5) 4 Injector (Cylinder #1) [High] control output Injector (Cylinder #1) 5 Camshaft Position Sensor (CMPS) [Bank 2 / Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 2 / Exhaust] 6 Camshaft Position Sensor (CMPS) [Bank 2 / Intake] signal input Camshaft Position Sensor (CMPS) [Bank 2 / Intake] 7 Throttle Position Sensor (TPS) 2 signal input Throttle Position Sensor (TPS) 2 8 - 　 9 Rail Pressure Sensor (RPS) signal input Rail Pressure Sensor (RPS) 10 CVVT Oil Temperature Sensor (OTS) signal input CVVT Oil Temperature Sensor (OTS) 11 - 　 12 - 　 13 Sensor power (+5V) CVVT Oil Temperature Sensor (OTS) Manifold Absolute Pressure Sensor (MAPS) 14 - 　 15 - 　 16 - 　 17 - 　 18 - 　 19 ETC Motor [-] control output ETC Motor 20 Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater control output Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] 21 Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] Heater control output Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 22 Ignition Coil (Cylinder #5) control output Ignition Coil (Cylinder #5 23 Injector (Cylinder #6) [High] control output Injector (Cylinder #6) 24 Injector (Cylinder #2) [High] control output Injector (Cylinder #2) 25 Injector (Cylinder #4) [High] control output Injector (Cylinder #4) 26 Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 27 Camshaft Position Sensor (CMPS) [Bank 1 / Intake] signal input Camshaft Position Sensor (CMPS) [Bank 1 / Intake] 28 Intake Air Temperature Sensor (IATS) signal input Intake Air Temperature Sensor (IATS) 29 Manifold Absolute Pressure Sensor (MAPS) signal input Manifold Absolute Pressure Sensor (MAPS) 30 - 　 31 - 　 32 - 　 33 - 　 34 Sensor power (+5V) Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Camshaft Position Sensor (CMPS) [Bank 2 / Intake] 35 - 　 36 Sensor power (+5V) Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Camshaft Position Sensor (CMPS) [Bank 2 / Exhaust] 37 - 　 38 Purge Control Solenoid Valve (PCSV) control output Purge Control Solenoid Valve (PCSV) 39 - 　 40 ETC Motor [+] control output ETC Motor 41 - 　 42 - 　 43 Ignition Coil (Cylinder #1) control output Ignition Coil (Cylinder #1) 44 Injector (Cylinder #6) [Low] control output Injector (Cylinder #6) 45 Injector (Cylinder #3) [Low] control output Injector (Cylinder #3) 46 Injector (Cylinder #2) [Low] control output Injector (Cylinder #2) 47 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Camshaft Position Sensor (CMPS) [Bank 2 / Intake] 48 Sensor ground Manifold Absolute Pressure Sensor (MAPS) Oil Pressure Sensor (OPS) 49 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Camshaft Position Sensor (CMPS) [Bank 2 / Exhaust] 50 - 　 51 - 　 52 - 　 53 - 　 54 Engine Coolant Temperature Sensor (ECTS) signal input Engine Coolant Temperature Sensor (ECTS) 55 Sensor Shield Crankshaft Position Sensor (CKPS) Knock Sensor (KS) #1 [Bank 1] Knock Sensor (KS) #2 [Bank 2] 56 Sensor power (+5V) Rail Pressure Sensor (RPS) 57 - 　 58 Sensor ground Engine Coolant Temperature Sensor (ECTS) Rail Pressure Sensor (RPS) 59 Sensor ground Throttle Position Sensor (TPS) 1 Throttle Position Sensor (TPS) 2 60 Variable Intake Solenoid (VIS) Valve 1 control output Variable Intake Solenoid (VIS) Valve 1 61 Variable Intake Solenoid (VIS) Valve 2 control output Variable Intake Solenoid (VIS) Valve 2 62 - 　 63 - 　 64 Ignition Coil (Cylinder #2) control output Ignition Coil (Cylinder #2) 65 Injector (Cylinder #1) [Low] control output Injector (Cylinder #1) 66 Injector (Cylinder #4) [Low] control output Injector (Cylinder #4) 67 Injector (Cylinder #5) [Low] control output Injector (Cylinder #5) 68 Crankshaft Position Sensor (CKPS) [High] signal input Crankshaft Position Sensor (CKPS) 69 Crankshaft Position Sensor (CKPS) [Low] signal input Crankshaft Position Sensor (CKPS) 70 - 　 71 - 　 72 Oil pressure switch signal input Oil Pressure Sensor (OPS) 73 - 　 74 - 　 75 Throttle Position Sensor (TPS) 1 signal input Throttle Position Sensor (TPS) 1 76 Knock Sensor (KS) [Bank 1] [Low] signal input Knock Sensor (KS) [Bank 1] 77 Knock Sensor (KS) [Bank 2] [Low] signal input Knock Sensor (KS) [Bank 2] 78 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] 79 Rc/Rp (Pump Cell Voltage) Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 80 VS+ (NERNST Cell Voltage) Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 81 Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] signal input Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] 82 VS+ (NERNST Cell Voltage) Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] 83 Rc (Compensative Resistance) Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] 84 Oil Pressure Solenoid Valve control output Oil Pressure Solenoid Valve 85 Ignition Coil (Cylinder #6) control output Ignition Coil (Cylinder #6) 86 Ignition Coil (Cylinder #3) control output Ignition Coil (Cylinder #3) 87 Fuel Pressure Control Valve (FPCV) [High] control output Fuel Pressure Control Valve (FPCV) 88 Fuel Pressure Control Valve (FPCV) [Low] control output Fuel Pressure Control Valve (FPCV) 89 Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] Heater control output Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] 90 Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater control output Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 91 CVVT Oil Control Valve (OCV) [Bank 2 / Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 2 / Exhaust] 92 CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust] 93 Variable Force Solenoid (VFS) [Bank 2 / Intake] control output Variable Force Solenoid (VFS) [Bank 2 / Intake] 94 Variable Force Solenoid (VFS) [Bank 1 / Intake] control output Variable Force Solenoid (VFS) [Bank 1 / Intake] 95 - 　 96 Sensor power (+5V) Throttle Position Sensor (TPS) 1 Throttle Position Sensor (TPS) 2 97 Knock Sensor (KS) [Bank 1] [High] signal input Knock Sensor (KS) [Bank 1] 98 Knock Sensor (KS) [Bank 2] [High] signal input Knock Sensor (KS) [Bank 2] 99 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 100 - 　 101 Rc (Compensative Resistance) Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 102 VS-/IP- (Common ground) Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 103 Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] signal input Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 104 VS-/IP- (Common ground) Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] 105 Rc/Rp (Pump Cell Voltage) Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Connector [K] Pin No Description Connected to 1 ECM ground Chassis ground 2 ECM ground Chassis ground 3 Battery power (B+) Main Relay 4 ECM ground Chassis ground 5 Battery power (B+) Main Relay 6 Battery power (B+) Main Relay 7 - 　 8 - 　 9 - 　 10 - 　 11 - 　 12 - 　 13 Sensor ground A/C Pressure Transducer (APT) 14 Immobilizer communication line Immobilizer Control Module 15 Fuel Level Sender (FLS) signal input [Fuel pump] Fuel Level Sender (FLS) 16 - 　 17 - 　 18 - 　 19 - 　 20 Sensor power (+5V) Accelerator Position Sensor (APS) 1 21 Main Relay control output Main Relay 22 - 　 23 - 　 24 - 　 25 - 　 26 - 　 27 - 　 28 Accelerator Position Sensor (APS) 2 signal input Accelerator Position Sensor (APS) 2 29 - 　 30 - 　 31 - 　 32 Fuel Level Sender (FLS) signal input [Sub Fuel Sender] Sub Fuel Level Sender 33 Fuel Pump Relay control output Fuel Pump Relay 34 - 　 35 Sensor power (+5V) A/C Pressure Transducer (APT) 36 Sensor power (+5V) Accelerator Position Sensor (APS) 2 37 - 　 38 Vehicle speed signal input VDC control module 39 - 　 40 - 　 41 Start signal input Start Relay 42 - 　 43 - 　 44 - 　 45 - 　 46 - 　 47 Sensor ground Accelerator Position Sensor (APS) 2 48 - 　 49 Brake Switch [Test] signal input Brake Switch 50 - 　 51 - 　 52 Sensor ground Accelerator Position Sensor (APS) 1 53 - 　 54 - 　 55 - 　 56 - 　 57 - 　 58 - 　 59 - 　 60 P-CAN [Low] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector 61 - 　 62 - 　 63 - 　 64 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT) 65 - 　 66 - 　 67 - 　 68 - 　 69 LIN (Local Interconnect Network) Serial Bus Line Battery Sensor 70 - 　 71 Cooling Fan Relay control output Cooling Fan Relay 72 Engine speed signal output Integrated Body Control Unit (IBU) 73 - 　 74 - 　 75 - 　 76 - 　 77 P-CAN [High] Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector 78 - 　 79 Start Relay control output Start Relay 80 - 　 81 - 　 82 Accelerator Position Sensor (APS) 1 signal input Accelerator Position Sensor (APS) 1 83 Brake Switch [Light] signal input Brake Switch 84 - 　 85 - 　 86 - 　 87 - 　 88 - 　 89 - 　 90 - 　 91 - 　 ECM Terminal Input/ Output signal Connector [A] Pin No  Description Condition Type Level 1 Ignition Coil (Cylinder #4) control output Idle Pulse Vpeak = 400V Frequency : 0 - 58...

    Hyundai Palisade (LX2) 2020-2025 Service Manual: Spark Plug


    Specifications Specification Item Specification Type SILZKR7E11 Gap 1.0 - 1.1 mm (0.0394 - 0.0433 in.) Insulation resistance (MΩ) 10 or more Description and operation Description A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine...

    Categories

    How Does the Air Bag System Operate?

    Hyundai Palisade. Operate?

    The SRS consists of the following components:

    1. Driver's front air bag module
    2. Passenger's front air bag module
    3. Side air bag modules
    4. Curtain air bag modules
    5. Retractor pre-tensioner
    6. Air bag warning light
    7. SRS control module (SRSCM)/ Rollover sensor
    8. Front impact sensors
    9. Side impact sensors
    10.Side pressure sensors
    11. Occupant classification system
    12. Driver’s knee airbag module

    read more


     
    Copyright © 2025 www.hpalisadelx.com