Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2019 Kia Optima SFACTORY OEM SERVICE PROCEDURE
Components & Components Location: Components
WARNING: This page is about a different variant/trim than selected.
CONNECTOR PIN INFORMATION
| No. | Connector A | Connector B | Connector C | Connector D |
|---|---|---|---|---|
| 1 | - | - | Front wiper low relay | - |
| 2 | Fuel filler door open_output | Heated handle switch | Auto light sensor ground | IGN1 |
| 3 | Rear left seat belt indicator | Fuel filler door open_input | PAS ON indicator | IGN2 (Heated handle power 1) |
| 4 | Assist seat belt indicator | Fuel filler door open switch | Heated handle indicator | IGN2 (Heated handle power 2) |
| 5 | Rear center seat belt indicator | Multifunction light switch | - | Heated handle power |
| 6 | Rear right seat belt indicator | - | - | Room lamp |
| 7 | - | - | Crash signal | Ground (Power) |
| 8 | - | PAS (Option) | Auto light sensor | - |
| 9 | Mirror unfold relay | - | NTC sensor | - |
| 10 | - | Sunroof open switch | Headlamp switch (High) | Power |
| 11 | Wiper ON relay | PAS ON switch | - | - |
| 12 | Head lamp washer relay | Multifunction light switch_ground | Front wiper INT volume | - |
| 13 | - | - | Front wiper switch | RPAS Power |
| 14 | Foot lamp | - | Fog lamp switch | FPAS Power |
| 15 | ATM solenoid | Window lock switch | Front wiper relay (High) | Ground (Signal) |
| 16 | - | - | Auto light power | |
| 17 | Security indicator | Safety power window ECU (LIN) | Safety ECU Enable | |
| 18 | Pocket lamp | - | EMS ECU Wake up | |
| 19 | - | C-CAN (High) | Door lock indicator | |
| 20 | Key hole illumination | C-CAN (Low) | - | |
| 21 | AV Tail | B-CAN (Low) | Front wiper low backup switch | |
| 22 | - | B-CAN (High) | NTC Ground | |
| 23 | Mirror fold relay | Intrusion protectionsystem (LIN) | IGN2 | |
| 24 | Rear fog lamp relay | Rain sensor (LIN) | ACC | |
| 25 | PAS (LIN) | - | ||
| 26 | - | Front wiper washer switch | ||
| 27 | - | - | ||
| 28 | Rear defogging switch | Brake switch | ||
| 29 | Side airbag (Option) | |||
| 30 | Wiper motor position | |||
| 31 | Charging door open switch (Front) | |||
| 32 | Charging door open switch (Rear) |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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