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.
Monitor Scantool Data
2011 Hyundai Equus SignatureSECTION Monitor Scantool Data
- Connect scantool to Data Link Connector (DLC).
- Engine start and drive the vehicle on the road.
- Monitor the "Vehicle Speed" AFLS parameters on the scantool and refer to ABS (ESC) system current data.
Specification: Be changed according to driving condition.
- Is parameter displayed within specifications?
YES
- Fault is intermittent caused by poor contact in the sensor's and/or AFLS ECU's connector or was repaired and AFLS ECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Faulty in vehicle speed sensor.
→ Check the Wheel speed sensor and ABS (ESC) system and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Faulty in only AFLS ECU signal.
→ Go to "INSPECTION/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.