Hyundai Tucson: Warnings and indicators / Anti-lock brake system (ABS) warning light
This light illuminates if the ignition switch is placed in the ON position and goes off in approximately 3 seconds if the system is operating normally.
If the ABS warning light remains on, comes on while driving, or does not come on when the ignition switch is placed to the ON position, this indicates that there may be a malfunction with the ABS.
If this occurs, have your vehicle checked by an authorized HYUNDAI dealer as soon as possible. The normal braking system will still be operational, but without the assistance of the anti-lock brake system.
Air bag warning light
This warning light will illuminate for approximately 6 seconds each time you
place the ignition switch in the ON position.
This light also comes on when the Supplemental Restraint System (SRS) is ...
Electronic brake force distribution (EBD) system warning light
If these two warning lights illuminate at the same time while driving, your vehicle
may have a malfunction with the ABS and EBD system.
In this case, your ABS and regular brake system may not wor ...
Other information:
Hyundai Tucson (LM) 2010-2015 Service Manual: Oil hydraulic Motor(Actuator) Description and Operation
Description
The 4WD 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. ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Accelerator Position Sensor (APS) Description and Operation
Description
Accelerator Position Sensor (APS) is installed on the
accelerator pedal module and detects the rotation angle of the
accelerator pedal. The APS is one of the most important sensors in
engine control system, so it consists of the two sensors which adapt
individual sensor power ...