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 MANUALSHYUNDAI2017SANTA FE SE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEM (ABS)/ELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1616: CAN BUS OFFWIRING INSPECTIONSIGNAL CIRCUIT INSPECTIONCAN BUS RESISTANCE CHECK
2017 Hyundai Santa Fe SE, FWD
CAN BUS Resistance Check
2017 Hyundai Santa Fe SE, FWDSECTION CAN BUS Resistance Check
- IG "OFF".
- Disconnect the HECU, PCM (ECM) connector.
- Measure resistance between CAN LOW terminal and CAN HIGH terminal of the HECU harness connector.
Specification: Approx. 120Ω
- Is the measured value within specifications?
YES
- Check the resistances (122Ω) in PCM (ECM), repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- If above check is OK, Go to "COMPONENT INSPECTION " procedure.
NO
- In case of the resistance "approx. 1Ω": Repair mutual short in CAN signal circuit of the HECU and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- In case of the resistance "∞ Ω": Check the resistances (122Ω) in I/P junction box and open in CAN signal circuit of the HECU, repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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.