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 DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEM (ABS)/ELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1209: WHEEL SPEED SENSOR REAR-RH OPEN/SHORTCOMPONENT INSPECTIONWHEEL SPEED SENSOR CIRCUIT CHECK
2017 Hyundai Santa Fe SE, FWD
Wheel Speed Sensor Circuit Check
2017 Hyundai Santa Fe SE, FWDSECTION Wheel Speed Sensor Circuit Check
- Lift the vehicle.
- IG "ON".
- Turn the wheel by hand.
- Measure waveform between signal terminal of the wheel speed sensor harness connector and chassis ground with oscilloscope.
Specification: High: 1.18~1.68V, Low: 0.59~0.84V
- Is the measured waveform within specifications?
YES
- Fault is intermittent caused by poor connection in wheel speed sensor harness (RR). Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace Wheel speed sensor 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.