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.
2018 Kia Niro Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE
Connector Pin Information
WARNING: This page is about a different car, the 2019 Hyundai Ioniq, 2018 Hyundai Ioniq, and 2017 Hyundai Ioniq. However, it is still accessible from the selected car via links, so may be relevant.
| No | Connector A | Connector B | Connector C |
|---|---|---|---|
| 1 | - | MM CAN (High) | P CAN (Low) |
| 2 | - | - | P CAN (High) |
| 3 | - | - | - |
| 4 | - | Steering wheel remote controller | - |
| 5 | SPDIF (Ground) | - | IGN3 WAKEUP |
| 6 | SPDIF (High) | MTS Switch | - |
| 7 | - | - | - |
| 8 | Illumination (+) | AUX Audio (Right) | - |
| 9 | - | AUX Audio ground (Shield) | - |
| 10 | - | Mic signal (+) | - |
| 11 | - | Battery (+) | B CAN (High) |
| 12 | - | Battery (+) | B CAN (Low) |
| 13 | - | MM CAN (Low) | - |
| 14 | IGN3 | - | - |
| 15 | SPDIF (Low) | - | - |
| 16 | - | Speed | Navigation amp (-) |
| 17 | Illumination (-) | Steering wheel remote controller ground | Navigation amp (+) |
| 18 | Antenna power | ACC | - |
| 19 | - | - | |
| 20 | AUX Detect | - | |
| 21 | AUX Audio (Left) | Camera shield ground | |
| 22 | Mic signal (-) | Camera video ground | |
| 23 | Ground | Camera video | |
| 24 | Ground | Camera power |
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.