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 Sedona EXFACTORY OEM SERVICE PROCEDURE
Smart Junction Box DTCS
SMART JUNCTION BOX DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1602 | 00: CAN Line Error (B-CAN) |
| DTC B1603 | 00: CAN Bus OFF (B-CAN) |
| DTC B2510 | 00: Head Lamp High RH Circuit Short to Ground |
| DTC B2511 | 00: Head Lamp High LH Circuit Short to Ground |
| DTC B2512 | 00: Head Lamp Low RH Circuit Short to Ground |
| DTC B2513 | 00: Head Lamp Low LH Circuit Short to Ground |
| DTC B2514 | 00: External Tail Lamp RH Short to Ground |
| DTC B2515 | 00: External Tail Lamp LH Short to Ground |
| DTC B2517 | 00: Internal Tail Lamp Circuit Short to Ground |
| DTC B251B | 00: Bi-function Head Lamp RH Short to Ground |
| DTC B251C | 00: Bi-function Head Lamp LH Short to Ground |
| DTC B251D | 00: Stop Lamp Right Short to Ground |
| DTC B251E | 00: Stop Lamp Left Short to Ground |
| DTC B251F | 00: High Mounted Stop Lamp Short to Ground |
| DTC B2522 | 00: Turn Signal LH Front Short to Ground |
| DTC B2523 | 00: Turn Signal LH Rear Short to Ground |
| DTC B2524 | 00: Turn Signal RH Front Short to Ground |
| DTC B2525 | 00: Turn Signal RH Rear Short to Ground |
| DTC B2559 | 00: Front Fog Lamp Right Circuit Short to Ground |
| DTC B2630 | 00: Front Fog Lamp Left Circuit Short to Ground |
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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