Lane Keeping Assist (LKA) On/Off Switch
Circuit Diagrams
Connector and Terminal Function

Repair Procedures
Inspection
Disconnect the negative (-) battery terminal.
Remove the airbag lower panel.
(Refer to Body - "Under Cover Panel")
Remove Lower Panel Cover [LH]
(Refer to Body — Crash Pad Garnish)
Remove the lower crash pad panel cover after loosening the mounting screws.

Disconnect the connector of the lower crash pad switch (A).

Turn on the LKA switch, then check the continuity between the terminals.


Removal
Disconnect the negative (-) battery terminal.
Remove the airbag lower panel.
(Refer to Body - "Under Cover Panel")
Remove Lower Panel Cover [LH]
(Refer to Body — Crash Pad Garnish)
Remove the lower crash pad panel cover after loosening the mounting screws.

Disconnect the connector of the lower crash pad switch (A).

Installation
Install in the reverse order of removal.
Test yourself
A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.