Inspect your spark plugs as described in chapter 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.
Kia Cee'd JD Service Manual: ABS Control Module Components and components location
Components
1. Front - left tube
2. Rear - right tube
3. Rear - left tube
4. Front - right tube
5. MC2
6. MC1
7. ABS control module(HECU)
8. Damper
9. Bracket
...
Kia Cee'd JD Service Manual: Power Seat Control Switch Repair procedures
Inspection
1.
With the power seat switch in each position, make sure that continuity
exists between the terminals below. If continuity is not as specified,
replace the power seat switch.
A : Power seat control switch
B : Lumbar support swi ...