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.
2017 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE
Smart Junction Block DTCS
SMART JUNCTION BLOCK DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1602 | 00: CAN Line Error (B-CAN) |
| DTC B1603 | 00: CAN Bus OFF (B-CAN) |
| DTC B2352 | 00: Dedicated DRL LH SCG |
| DTC B2353 | 00: Dedicated DRL RH SCG |
| DTC B2510 | 00: Head Lamp High RH SCG |
| DTC B2511 | 00: Head Lamp High LH SCG |
| DTC B2512 | 00: Head Lamp Low RH SCG |
| DTC B2513 | 00: Head Lamp Low LH SCG |
| DTC B2517 | 00: Internal Tail Lamp Circuit Short to Ground |
| DTC B251D | 00: Stop Lamp Right Circuit Short to Ground |
| DTC B251E | 00: Stop Lamp Left Circuit 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 B2542 | 00: Static Bending Lamp LH Short to GND |
| DTC B2550 | 00: Static Bending Lamp RH Short to GND |
| DTC B258A | 00: External Tail Lamp Front Right Circuit Short to Ground |
| DTC B258B | 00: External Tail Lamp Front Left Circuit Short to Ground |
| DTC B258C | 00: External Tail Lamp Rear Right Circuit Short to Ground |
| DTC B258D | 00: External Tail Lamp Rear Left Circuit Short to Ground |
| DTC B2600 | 00: High Head Lamp LH Open Circuit |
| DTC B2601 | 00: High Head Lamp RH Open Circuit |
| DTC B2602 | 00: Low Head Lamp LH Open Circuit |
| DTC B2603 | 00: Low Head Lamp RH Open Circuit |
| DTC B2608 | 00: Turn Signal Lamp Front LH Open Circuit |
| DTC B2609 | 00: Turn Signal Lamp Front RH Open Circuit |
| DTC B260A | 00: Turn Signal Lamp Rear LH Open Circuit |
| DTC B260B | 00: Turn Signal Lamp Rear RH Open Circuit |
| DTC B260C | 00: Stop Lamp LH Open Circuit |
| DTC B260D | 00: Stop Lamp RH Open Circuit |
| DTC B260E | 00: Static Bending Lamp LH Open Circuit |
| DTC B260F | 00: Static Bending Lamp RH Open Circuit |
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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