Hyundai Palisade: Heater / Auto Defogging Actuator
Description and operation
The auto defogging sensor is installed on the front window glass. The sensor
judges and sends signal if moisture occurs to blow out wind for defogging. The
air conditioner control module receives a signal from the sensor and restrains
moisture and eliminates defog by the intake actuator, A/C, auto defogging actuator,
blower motor rpm and mode actuator.
Components and components location

1. Auto defogging actuator
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Repair procedures
1. |
Turn the ignition switch OFF.
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2. |
Disconnect the auto defogging connector.
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3. |
Verify that the auto defogging actuator operates to the open position
when connecting 12V to terminal 3 and grounding terminal 6.
Verify that the auto defogging actuator operates to the close position
when connected in reverse.

1. -
2. -
3. DEF (Close)
4. DEF (Open)
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5. Sensor power (+5V)
6. Feedback signal
7. Sensor ground
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4. |
Connect the auto defogging actuator connector.
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5. |
Turn the ignition switch ON.
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6. |
Check the voltage between terminals 5 and 4.
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It will feedback the current position of the actuator
to controls.
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Specification
Door position
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Voltage (V)
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Error detecting
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Defog ON (Open)
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0.5 ± 0.15
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Low voltage : 0.7V or less
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Defog OFF (Close)
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4.7 ± 0.15
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High voltage : 4.9V or less
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7. |
If the measured voltage is not within specification, check the operation
by replacing the existing auto defogging actuator with a new genuine
part. After that, determine whether replacement of the auto defogging
actuator is required or not.
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1. |
Disconnect the negative (-) battery terminal.
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2. |
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
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3. |
Press the lock pin and separate the connector (A) and loosen the mounting
screws and remove the auto defogging actuator (B).

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4. |
Install in the reverse order of removal.
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Description and operation
Description
The mode control actuator is located at the heater unit.
It adjusts the position of the mode door by operating the mode control actuator
based on the signal of the A/C control unit...
Other information:
Components and components location
Component
Connector Pin Function
Connector
PIN No
Pin Function
Connector
PIN No
Pin Function
A
1
Battery
A
21
IGN2
2
ISG B+
22
IGN1
3
ILL+ (TAIL)
23
Blower Motor (+)
4
Sensor Ground REF (+5V)
24
Photo Sensor (-)_LEFT
5
Mode Control Actuator Feedback
25
Photo Sensor (-)_RIGHT
6
Temperature Actuator Feedback - Driver
26
Incar Sensor (+)
7
Intake Actuator Feedback
27
Incar Motor (-)
8
Evaporator Temperature Sensor (+)
28
PTC Relay 3
9
Ambient Temperature Sensor (+)
29
PTC Relay 3
10
Mode Control Actuator (Vent)
30
PTC On Signal
11
Mode Control Actuator (Defrost)
31
Detent out (-)
12
Temperature Control Actuator (Cool) - Driver
32
K - Line
13
Temperature Control Actuator (Warm) - Driver
33
P_CAN High
14
Intake Actuator (Fresh Air)
34
P_CAN Low
15
Intake Actuator (Recirculated Air)
35
Mosfet (DRAIN F/B)
16
HTD (Rear Defrost)
36
Mosfet (GATE)
17
Rear Defogging Swich
37
ECV +
18
Clean Signal
38
ECV -
19
Ionizer Diagnosis
39
Sensor Ground
20
ILL - (RHEO)
40
Ground
Connector
PIN No
Pin Function
Connector
PIN No
Pin Function
B
1
Temperature Control Actuator Feedback - Passenger
B
9
-
2
Temperature Control Actuator (Cool) - Passenger
10
-
3
Temperature Control Actuator (Warm) - Passenger
11
-
4
Defogging Actuator Feedback
12
Defogging Sensor TEMP
5
Defogging Actuator (Open)
13
Defogging Sensor SCK
6
Defogging Actuator (Close)
14
Defogging Sensor Data
7
-
15
-
8
Seat Signal PWM - Driver
16
Ground
Repair procedures
Self Diagnosis
1...
Description
Rear view camera will activate when the backup light is ON with the ignition
switch ON and the shift lever in the R position.
This system is a supplemental system that shows behind the vehicle through the
AV monitor or the ECM (Reverse Display Room Mirror) mirror while backing-up...
Categories
The front seat can be adjusted by
using the levers located on the outside
of the seat cushion. Before driving,
adjust the seat to the proper
position so that you can easily control
the steering wheel, foot pedals
and controls on the instrument
panel.

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