Kia Optima DL3: Rear Glass Defogger / Rear Glass Defogger Switch

Repair procedures

Inspection
1.

In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (KDS).

The diagnostic system (KDS) provides the following information.

(1)

Self diagnosis : Checking failure and code number (DTC).

(2)

Current data : Checking the system input/output data state.

(3)

Actuation test : Checking the system operation condition.

(4)

Additional function : Controlling other features including system option setting and zero point adjustment.

2.

Select the 'Car model' and the 'IBU-BCM' to be checked in order to check the vehicle with the tester.

3.

Select the 'Current Data' menu to search the current state of the input/output data.

4.

To force actuate the input value of the module to be checked, select option 'Actuation Test'

Removal
1.

Disconnect the negative battery terminal.

2.

Remove the heater and A/C control unit.

(Refer to Heating, Ventilation, Air conditioning -"Heater & Control Unit (Manual)")

(Refer to Heating, Ventilation and Air Conditioning - "Heater & A/C Control Unit (DATC)")

(Refer to Heating, Ventilation and Air Conditioning - "Heater Control Unit")

Installation
1.

Install in the reverse order of removal.

    Repair procedures Inspection    • Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line.

    Other information:

    Kia Optima DL3 2019-2026 Service and Repair Manual: Cluster Ionizer

    Components and components location Components Location 1. Condenser Description and operation Description The cluster ionizer makes disinfection and decomposition of bad smell from the air-conditioner or inflow air.

    Kia Optima DL3 2019-2026 Service and Repair Manual: Intake Actuator

    Components and components location Components Location 1. Intake actuator Description and operation Description The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit.

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