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.

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HOMESERVICE MANUALSHYUNDAI2014VELOSTER RE:FLEXREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESTELEMATICS UNIT DIAGNOSISDTC B1690: NETWORK FAIL (HI-CAN)DTC INFORMATIONDTC DETECTING CONDITION

2014 Hyundai Veloster RE:FLEX

DTC Information: DTC Detecting Condition

2014 Hyundai Veloster RE:FLEXSECTION DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	Check for short circuit of CAN High/Low line.	Short to ground of communication line Short t battery of communication line Termination register (120Ω)
Enable Conditions	IG ON Battery voltage is between 9V and 16V
Threshold value	CAN messages can not be sent form more than 500msec
Lamp	-

RENDER: 1.0x

NO RELATED

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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.