Hyundai Tucson: Auto Lighting Control System / Auto Light Sensor Repair procedures
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 IPM 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.
| Tail lamp
| Head lamp
|
ON
| 1.0 ± 0.10V
|
OFF
| 2.3 ± 0.20V
|
![](images/auto_light_sensor_repair_procedures-1260/514/slmbe0346d.gif)
1. |
Disconnect the negative (-) battery terminal. |
2. |
Remove the photo & auto light sensor (A) from crash pad upper side by using a flat-up screwdriver. ![](images/auto_light_sensor_repair_procedures-1260/514/slmbe0347d.gif)
|
3. |
Remove the auto light connector. |
1. |
Reconnect the auto light connector. |
2. |
Install the auto light sensor. |
Inspection
Operate the auto light switch, then check for continuity between terminals of multi-function switch connector. ...
Other information:
Hyundai Tucson (LM) 2010-2015 Owners Manual: Emergency precautions
Tires
Do not use tire and wheel with different size and type from the one originally
installed on your vehicle. It can affect the safety and performance of your vehicle,
which could lead to steering failure or rollover causing serious injury.
When replacing the tires, be sure to equip all four ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Components and Components Location
Component Location
1. Hood switch2. Burglar horn3. BCM & RF receiver4. Key warning switch5. Front door switch6. Front door lock actuator & switch7. Rear door lock actuator & switch8. Rear door switch9. Liftgate lid switch
1. Antenna2. BCM connector3. Antenna bracket
...