Kia Sportage: 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 diverse sensors. It is important
to have a stable power supply as there diverse sensors giving a variety of information.
Battery sensor (A) 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.

Specifications
Battery Sensor
Item
Specification
Rated Voltage (V)
12 - 14
Quiescent Current (uA)
...
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-)
terminal.
2.
Disconnect the battery sensor connecto ...
Other information:
Description
According to driving environment and loading state of vehicle, head lamp lighting
direction is changed to keep the driver's visibility range and to protect the
driver's vision from glare, aiming at safety driving.
Sensor integrated ECU mounting on t ...
Removal
1.
Disconnect the battery negative terminal.
2.
Remove the intake manifold stay(A).
Tightening torque :
18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4lb·ft)
...