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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSHYUNDAI2024ELANTRA HYBRID LIMITEDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESINTEGRATED CENTRAL CONTROL UNIT DIAGNOSIS (HEV)DTC B2817-00: I-CAN BUS OFF ERRORDTC INFORMATION AND INSPECTIONDTC SETTING CONDITION

2024 Hyundai Elantra Hybrid Limited

DTC Setting Condition

2024 Hyundai Elantra Hybrid LimitedSECTION DTC Setting Condition

Troubleshooting	Condition	Possible Cause
Main Action	Monitor the CAN communication	Open/Poor Connection both I-CAN High line and Low line Short to auxiliary battery both I-CAN High line and Low line Short to Ground both I-CAN High line and Low line Short between I-CAN High line and Low line
Prerequisite Condition	Power Voltage: Between 9V and 16V I-CAN communication: Active
Threshold Value	Impossible to send I-CAN message
Diagnosis Time	2sec

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.