Hyundai Palisade: Auto Lighting Control System / Auto Light Sensor
Repair procedures
Check if the auto light control operates like a timing chart shown below. Tail
lamp output and head lamp (Low) output is controlled based on the auto light
sensor's input (illumination intensity) when the Auto Light Switch in Multi-Function
Switch is turned ON, and the vehicle is in IGN1 or IGN2 ON Mode. If IGN1 = ON,
BCM detects this voltage, and if the voltage exceeds rated voltage, then auto
light failure occurs. (below 4V or above 6V)
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Failure Occurrence : If auto light failure occurs, the head
lamp must be turned ON regardless of sun light level. This is
to prevent the head lamp from being turned OFF in case of auto
light failure during night time.
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In the state of IGN1 ON, when multi function switch module detects auto light
switch on, tail lamp relay output and head lamp low relay output are controlled
according to auto light sensor's input.The auto light control doesn't work if
the pin sunlight supply (5V regulated power from Ignition 1 power to sunlight
sensor) is in short circuit with the ground.If IGN1 ON, The BCM monitors the
range of this supply and raises up a failure as soon as the supply’s voltage
is out of range. Then this failure occurs and as long as this is present, the
head lamp must be turned on without taking care about the sunlight level provided
by the sensor.This is designed to prevent any head lamp cut off when the failure
occurs during the night.



1. |
Disconnect the negative (-) battery terminal.
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2. |
Remove the photo & auto light sensor (A) from crash pad upper side by
using a flat-tip screwdriver.

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3. |
Remove the auto light connector.
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1. |
Reconnect the auto light connector.
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2. |
Install the auto light sensor.
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Description
It's a system that uses illumination sensor to automatically turn ON the tail
lamp and head lamp based on the change in surrounding environment's illumination
condition...
Other information:
Description and operation
Description
The AWD ECM controls the Pump Motor Pump (Actuator) to generating an oil pressure.
The pressure engages a multiple disk clutch to transfer torque to the rear wheels.
The torque to the rear wheels varies according to the pressure on the clutch...
The severe weather conditions of
winter quickly wear out tires and
cause other problems. To minimize
winter driving problems, you should
take the following suggestions:
Snow or Icy Conditions
You need to keep sufficient distance
between your vehicle and the vehicle
in front of you...
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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