Kia Optima Hybrid: Charging System / Repair procedures

On-vehicle Inspection
   
Check that the auxiliary 12V battery cables are connected to the correct terminals.
Disconnect the auxiliary 12V battery cables when the battery is given a quick charge.
Never disconnect the auxiliary 12V battery while the engine is running.
Check The Auxiliary 12V Battery Terminals And Fuses
1.
Check that the auxiliary 12V battery terminals are not loose or corroded.
2.
Check the fuses for continuity.
Check Discharge Warning Light Circuit
1.
Warm up the engine and then turn it off.
2.
Turn off all accessories.
3.
Turn the ignition switch "ON". Check that the discharge warning light is lit.
4.
Start the engine and Check that the light goes off.
If the light does not go off as specified, then refer to the LDC diagnostics section for further diagnosis of auxiliary 12V battery charging system problem.
Charging System

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Auxiliary 12V Battery Components and Components Location

Components 1. Battery tray2. Auxiliary 12V Battery3. Battery upper bracket ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Intake Actuator Description and Operation


Description 1. The intake actuator is located at the blower unit. 2. It regulates the intake door by signal from control unit. 3. Pressing the intake selection switch will shift between recirculation and fresh air modes. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Injector Description and Operation


Description Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time. The ECM controls each injector by grounding the control circuit. When the ...

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