Remove the lighting switch from the multifunction switch. (Refer to Multifunction Switch)
Using the front fog lamp switch, check for continuity between the terminals shown below. If continuity is not as specified, replace the multifunction switch.Front Fog Lamp
Removal
Disconnect the negative (-) battery terminal.
Remove the front wheel guard clips (2EA). (Refer to Group BD - "Front Bumper")
Disconnect the front fog lamp connector (A).
Replace the front fog lamp (A) by turning it counterclockwise.
Installation
Install the front fog lamp.
Connect the lamp connector.
Install the front bumper.
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Test yourself
A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.