Kia Optima Hybrid: Charging System / Auxiliary 12V Battery Description and Operation

Description
1.
The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps.
2.
Water never needs to be added to the maintenance-free battery.
3.
The battery is completely sealed, except for small vent holes in the cover.

   
After disconnecting then reconnecting the battery negative cable, reset some parts that require the reset procedures. (Refer to BE group - "General Information")
Auxiliary 12V Battery Components and Components Location

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

Auxiliary 12V Battery Repair procedures

Removal and Installation 1. Disconnect the battery negative terminal (B) first, then the positive terminal (A). Tightening torque : (+) terminal (A) : 7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft) (-) ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Schematic Diagrams


Circuit Diagram (1) Circuit Diagram (2) Circuit Diagram (3) SRSCM Connector Terminal Pin Function (Connector A)Pin Function (Connector B)1PSmart Junction Box (Fuse - A/BAG)1OPassenger Side Impact Sensor (High)2--2LPassenger Side Impact Sensor (Low)3--3GDriver Side Impact Sensor (High)4G/ODriver ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting


Troubleshooting SymptomPossible causeRemedyTachometer does not operateCluster fuse (10A) blownCheck for short and replace fuseCAN line faultyCheck the EMSTachometer faultyCheck tachometerWiring or ground faultyRepair if necessaryFuel gauge does not operateCluster fuse (10A) blownCheck for short and replace ...

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