Kia Optima: Inspection
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.
Removal
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the auto light sensor
(A) from crash pad upper side by using screw (-) driver.
...
See also:
Disassembly
If the disassembly procedure is complex, requiring many parts to be disassembled,
all parts should be disassembled in a way that will not affect their performance
or external appearance.
1.
...
Removal
1.
Disconnect the battery negative
cable, and wait for at least three minutes before beginning work.
2.
To remove the seat belt anchor
pretensioner (C), keep on push ...
Removal
In case of removing the high pressure fuel pump,
high pressure fuel pipe, delivery pipe, and injector, there may be injury
caused by ...