Kia Optima: 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 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.

Repair procedures
1. |
Turn the ignition switch OFF.
|
2. |
Disconnect the battery (-) terminal (A).
Tightening torque :
4.0 - 6.0 N.m (0.4 - 0.6 kgf.m, 3.0 - 4.4 lb-ft)
|

|
3. |
Remove the battery.
(Refer to Engine Electrical System - "Battery")
|
4. |
Remove the battery negative (-) cable after removing the bolts (A).
Tightening torque :
10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 -10.1 lb-ft)
|

|
1. |
Install in the reverse order of removal.
|
Description and operation
Description
1.
The CMF(Closed Maintenance Free) battery is, as the name implies, totally
maintenance free and has no removable battery cell ca ...
Description and operation
Description
The starting system includes the battery, starter, solenoid switch, ignition
switch, inhibitor switch (A/T), clutch pedal switch (M/T), ignition l ...
Other information:
Description
On this mode, you can change setting of the doors, lamps, and so on.
WARNING
Do not adjust the User Setting while driving.
You may lose your steering control which could cause an accident and bodily
injury.
Shift to P to edit settings
This warning message appears if you try t ...
General information
Identification Numbers
Identification Number
Description
Vehicle Identification
Number
1.
World Manufacturer Identifier (WMI)
- KNA : Passenger vehicle, MPV(Multipurpose Passenger Vehicle)/SUV(Sports
Utility Vehicle)/RV(Recreatio ...