Hyundai Santa Fe: Charging System / Battery Sensor. Description and operation
Vehicles have many control units that use more electricity. These units control
their own system based on information from various sensors. It is important
to provide a stable power supply as these sensors bring diverse information.
Battery sensor is mounted on battery (-) terminal. It transmits battery voltage,
current, temperature information to ECM. ECM controls generating voltage by
duty cycle based on these signals.

Removal
Battery
1.
Turn the ignition switch OFF and disconnect the battery (-) terminal
(A).
Tightening torque :
7...
Removal
1.
Turn the ignition switch OFF and disconnect the battery (-) terminal.
2.
Disconnect the battery sensor connector (A)...
Other information:
Removal
1.
Raise the vehicle, and make sure it is securely supported.
2.
In the case of 4WD vehicle, remove the rear differential assembly.
(Refer to Driveshaft and axle - "Rear Differential Carrier")
3...
Inspection
•
If you have trouble code related to the oil hydraulic motor
(actuator), check oil hydraulic motor (actuator) according to
the inspection process...
Categories
Engine oil pressure warning light
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This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more details, refer
to “Engine Oil” section in chapter 9). If the level is low, add oil as required.
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