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)QUICK LOOKUPSDTC INDEX4WD CONTROL SYSTEM DTCS
2017 Hyundai Santa Fe SE, FWD
4WD Control System DTCS
2017 Hyundai Santa Fe SE, FWDSECTION 4WD Control System DTCS
4WD CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0602 | Control Module Programming Error |
| DTC P1779 | Supply Voltage Missing |
| DTC P1780 | Battery Voltage High |
| DTC P1781 | Battery Voltage Low |
| DTC P1820 | Pump for 4WD Motor High Overcurrent Detected |
| DTC P1821 | Pump for 4WD Motor Wire Short to Battery |
| DTC P1822 | Pump for 4WD Motor Wire Open Load |
| DTC P1823 | Pump for 4WD Motor Wire Short to GND |
| DTC P1824 | Pump for 4WD Slow Thermal Overload |
| DTC P1825 | Pressure Sensor for 4WD Supply Short to Battery |
| DTC P1826 | Pressure Sensor for 4WD Supply Short to Ground |
| DTC P1827 | Pressure Sensor for 4WD Signal Wire Short to Battery |
| DTC P1828 | Pressure Sensor for 4WD Signal Wire Short to Ground |
| DTC P1829 | Clutch Torque Tolerance Upper Limit |
| DTC P1830 | Clutch Torque Tolerance Lower Limit |
| DTC P1831 | Clutch Thermal Overstress Warning |
| DTC P1832 | Clutch Thermal Overstress Shutdown |
| DTC P1833 | Actuator Thermal Overstress Warning |
| DTC P1834 | Actuator Thermal Overstress Shutdown |
| DTC P1835 | Pressure Sensor for 4WD Supply Offset Failure |
| DTC P1836 | Bleed Pressure Line Test Error |
| DTC P1837 | Vehicle Variant Can Not Be Detected |
| DTC U0001 | High Speed CAN Communication Bus off |
| DTC U0100 | Lost Communication With ECM/PCM 'A' |
| DTC U0101 | Lost Communication with TCM (C-CAN) |
| DTC U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module |
| DTC U0122 | Lost Communication With Vehicle Dynamics Control Module |
| DTC U0126 | Lost Communication With Steering Angle Sensor Module |
| DTC U1121 | Lost Communication With Electric Stability Program Module |
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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.