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 LXFACTORY OEM SERVICE PROCEDURE
Section 249 (Occupant Classification System Diagnosis (PHEV))
WARNING: This page is about a different variant/trim than selected.
- DTC Index
- DTC B1111-17: Ignition Voltage High
- DTC B1112-16: Ignition Voltage Low
- DTC B1603-88: CAN Bus Off
- Component Location
- General Information
- DTC Information
- Specification
- DTC Inspection
- Wiring Inspection
- Verification of Repair
- ETM
- DTC B1697-87: ACU Communication Error
- Component Location
- General Information
- DTC Information
- DTC Inspection
- Wiring Inspection
- Verification of Repair
- ETM
- DTC B1763-00: OCS ECU Defect
- DTC B1764-00: OCS MAT Defect
- DTC B1767-2F: OCS Algo Cut Off
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.