Kia Optima DL3: Body Electrical System / Power Door Locks

Components and components location

Component Location

1. Hood switch
2. Integrated Body Control Unit (IBU)
3. Horn
4. Front door actuator & switch
5. Rear door actuator & switch
6. Trunk actuator & switch

Schematic diagrams Connector and Terminal Function Repair procedures Inspection 1. Disconnect the negative battery terminal.

Repair procedures Inspection Power Window Main Switch Diagnosis With KDS 1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (KDS).

Other information:

Kia Optima DL3 2019-2026 Service and Repair Manual: Power Window Switch

Schematic diagrams Connector and Terminal Function Power Window Main Switch Pin Function 1 B-CAN (Low) 2 B-CAN (High) 3 Ground (Assist safety) 4 Assist safety 5

Kia Optima DL3 2019-2026 Service and Repair Manual: Heater Core

Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly. (Refer to Heater - "Heater Unit") 3. Loosen the mounting screws and remove the heater core cover (A).

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