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.
2021 Kia K5 EXFACTORY OEM SERVICE PROCEDURE
Connector and Terminal Function
WARNING: This page is about a different car, the 2024 Kia K5. However, it is still accessible from the selected car via links, so may be relevant.
| Pin | Function | |||
|---|---|---|---|---|
| Connector A | Connector B | Connector C | Connector D | |
| 1 | - | Front washer switch (Output) | - | Driver outside handle switch (Input) |
| 2 | Rear seat belt indicator Left (Output) | - | - | Assist outside handle switch (Input) |
| 3 | - | - | - | - |
| 4 | - | - | - | - |
| 5 | External buzzer (Output) | - | - | RPM (Input) |
| 6 | Rear seat belt indicator Center (Output) | Wiper parking switch (Input) | - | SSB symbol illumination (+) (Output) |
| 7 | Puddle pocket lamp (Output) | - | - | ACC relay (Output) |
| 8 | Rear seat belt indicator Right (Output) | Brake switch (Input) | - | IGN1 relay (Output) |
| 9 | - | - | - | IGN2 relay (Output) |
| 10 | Headlamp high switch (Input) | Front wiper volume switch (Input) | - | Starter relay (Output) |
| 11 | - | - | Assist outside handle antenna (+) (Output) | |
| 12 | - | LIN4 (Safety ECU) | Interior antenna 2 (+) (Output) | |
| 13 | Rear view switch (Input) | PAS Option (Input) | Trunk interior antenna 3 (+) (Output) | |
| 14 | - | - | Interior antenna 1 (+) (Output) | |
| 15 | RPAS Power (Output) | B-CAN (Low) | Bumper antenna (+) (Output) | |
| 16 | FRAS Power (Output) | B-CAN (High) | Driver outside handle antenna (+) (Output) | |
| 17 | PAS/RPAS Power (Input) | - | - | |
| 18 | - | Ground (Power) | - | |
| 19 | - | - | - | |
| 20 | Ground (ECU) | Immobilizer power (Output) | - | |
| 21 | - | Immobilizer ground (Output) | SSB switch 1 (Input) | |
| 22 | K-Line_lmmobilizer | - | SSB switch 2 (Input) | |
| 23 | - | PAS/RPAS Switch indicator (Output) | Clutch IGN lock switch | |
| 24 | - | Front wiper switch (Input) | - | |
| 25 | Sunroof status (Input) | - | Wheel speed sensor (Input) | |
| 26 | PAS/RPAS Switch (Input) | Multifunction switch ground (Input) | - | |
| 27 | ATM Solenoid (Output) | Wiper power relay (Output) | - | |
| 28 | LIN3 (Rain sensor) | Auto light sensor ground (Output) | - | |
| 29 | LIN2 (ROA) | Auto light sensor signal (Input) | - | |
| 30 | LIN1 (PDW-F or PDW-R) | Auto light sensor power (Output) | Start feed back (Input) | |
| 31 | Door unlock signal (For IFU) EMS (Output) | - | Assist outside handle antenna (-) (Output) | |
| 32 | Light switch (Input) | Front wiper high relay (Output) | Interior antenna 2 (-) (Output) | |
| 33 | Fog switch (Input) | Front wiper low relay (Output) | Trunk interior antenna 3 (-) (Output) | |
| 34 | IGN2 (Input) | Front wiper lowbackup switch (Input) | Interior antenna 1 (-) (Output) | |
| 35 | IGN1 (Input) | P-CAN (Low) | Bumper antenna (-) (Output) | |
| 36 | ACC (Input) | P-CAN (High) | Driver outside handle antenna (-) (Output) | |
| 37 | Battery + (ECU) | - | ||
| 38 | Battery + (Power) | - | ||
| 39 | - | - | ||
| 40 | Front heated nozzle (Output) | 'P' Position (input) | ||
Factory Service Tools
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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.