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
Adaptive Front Lighting System DTCS
ADAPTIVE FRONT LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1101 | 17: Battery Voltage High |
| DTC B1102 | 16: Battery Voltage Low |
| DTC B1220 | 87: Vehicle Speed Sensor |
| DTC B1301 | 87: Steering Angle Signal Fault |
| DTC B1302 | 87: TGS Signal Fault |
| DTC B1303 | 87: Accelerator pedal signal fault |
| DTC B1304 | 87: Engine state signal fault |
| DTC B1305 | 87: Yaw Rate Sensor Signal Fault |
| DTC B1306 | 87: Brake pedal signal fault |
| DTC B1308 | 87: Lamp Function Signal Fault |
| DTC B1603 | 88: CAN Bus OFF |
| DTC B1621 | 01: ECU Hardware Error |
| DTC B1622 | 48: ECU Software Error |
| DTC B1636 | 88: LIN error |
| DTC B1637 | 54: System Not Initialized |
| DTC B1639 | 81: LIN communication error DBL(Dynamic Bending Light) Left |
| DTC B1661 | 46: Parameter Fault And Missing |
| DTC B1953 | 03: AXLE Sensor Fault |
| DTC B2200 | 81: LIN communication error DBL(Dynamic Bending Light) Right |
| DTC B2201 | 81: LIN communication error LWR left |
| DTC B2202 | 81: LIN communication error LWR right |
| DTC B2325 | 09: Swivel Module Fault Left |
| DTC B2326 | 09: Swivel Module Fault Right |
| DTC B2400 | 09: Leveling Motor Fault Left |
| DTC B2401 | 09: Leveling Motor Fault Right |
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.
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