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 MANUALSHYUNDAI2009TUCSON LIMITED, 2.0 BREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSDTC CODES - HVAC SYSTEMB1250 DIRECTION POTENTIOMETER SHORT (HIGH)-DRIVERMONITOR SCAN TOOL DATA
2009 Hyundai Tucson Limited, 2.0 B
Monitor Scan Tool Data
2009 Hyundai Tucson Limited, 2.0 BSECTION Monitor Scan Tool Data
- Connect scan tool to Data Link Connector (DLC).
- Engine "ON"
- Monitor the "DIRECTION POTENTIO.DR." parameter on the scan tool while operating mode switch.
- Is the DTC B1250 present and is parameter of "DIRECTION POTENTIO.DR." fixed?
* Parameter of "DIRECTION POTENTIO.DR." will be fixed at 100%(or any value above 90%), or 0% (or any value below 10%), if there is any fault in Driver Direction Potentiometer.
YES
- Go to "INSPECTION " procedure.
NO
- The electrical systems are made up of many harness and connectors. Many kinds of fault are caused by poor connection of sensors and terminals. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace 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.