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 MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (3 OF 3) - G3.5 DOHCDTC U0001: HIGH SPEED CAN COMMUNICATION BUS OFFINSPECTION/REPAIRW/HARNESS INSPECTIONSIGNAL CIRCUIT INSPECTION
2011 Hyundai Santa Fe GLS, 3.5 G, AWD
Signal Circuit Inspection
2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION Signal Circuit Inspection
- Check CAN BUS resistance in Data Link Connector
- IG "OFF"
- Measure the resistance between CAN-HIGH and CAN-LOW terminals of data link connector (Measurement "A")
- Disconnect ECM connector.
- Measure the resistance between CAN-HIGH and CAN-LOW terminals of data link connector (Measurement "B")
Specification : ECM, Instrument Cluster and ABS/ESC ECU connected : 60 ± 3Ω (Measurement "A"), ECM disconnected : 120 ± 3Ω (Measurement "B")
RENDER: 1.0x
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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.