Kia Optima Hybrid: Charging System / Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Electrical System / 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: Schematic Diagrams

System Block Diagram Component Parts And Function Outline Component partFunctionECUControls engine.MCUControls drive motor.ABSSends vehicle speed to HCU.HCUReceives signals from sensor and control switches.Cluster (Cruise control indicator)Illuminate when CRUISE main switch is ON (Built into cluster)Cruise ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location

Component Location [Vehicle Installation component] 1. Automatic transaxle2. Transaxle control module (TCM)3. Shift lever4. Data Link Connector (DLC) [Transaxle Installation component] 1. Input speed sensor2. Output speed sensor3. Solenoid valve connector4. Oil temperature sensor5. Valve body assembly6. ...