Hyundai Santa Fe: Coupling Assembly / Pressure Sensor. Description and operation
The 4WD ECU makes a Motor Pump(Actuator) turn round for generating an oil pressure.
And then it presses a multiple disk clutch and transfers the generated torque
into rear wheels. Its torque value varies according to a pressure status.
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Component location

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Inspection
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If you have trouble code related to the oil hydraulic motor
(actuator), check oil hydraulic motor (actuator) according to
the inspection process...
Other information:
WARNING
Over-inflation or under-inflation can reduce tire life, adversely affect vehicle
handling, and lead to sudden tire failure that may cause loss of vehicle control
resulting in an accident.
Each tire, including the spare (if provided), should be checked monthly when
cold and inflated to the inflation pressure recommended by the vehicle manufacturer
on the vehicle placard or tire inflation pressure label...
..
Categories
WARNING
To reduce the risk of an air bag deploying unexpectedly and causing serious
injury or death:
Do not hit or allow any objects to impact the locations where air
bags or sensors are installed.
Do not perform maintenance on or around the air bag sensors. If
the location or angle of the sensors is altered, the air bags may deploy when
they should not or may not deploy when they should.
Installing bumper guards with nongenuine Hyundai or non-equivalent
parts may adversely affect the collision and airbag deployment performance.
Press the Engine Start/Stop button to the OFF or ACC position and
wait for 3 minutes when the vehicle is being towed to prevent inadvertent air
bag deployment.
Have all air bag repairs performed by an authorized HYUNDAI dealer.
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