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.
2020 Genesis G90 3.3T Premium, AWDFACTORY OEM SERVICE PROCEDURE
4WD Control System DTCS
4WD CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P1736 | 00: Motor supply Voltage high voltage |
| DTC P1737 | 00: Motor supply Voltage Low voltage |
| DTC P1756 | 00: EMC Internal Error |
| DTC P1780 | 00: Control Unit Supply High Voltage |
| DTC P1781 | 00: Control Unit Supply Low Voltage |
| DTC P3100 | 00: Control Module - Failure Motorwinding |
| DTC P3101 | 00: Control Module - Motor Overcurrent |
| DTC P3102 | 00: Control Module - Control ASIC Overtemperature |
| DTC P3103 | 00: Control Module - Failure Position Sensor |
| DTC P3104 | 00: Control Module - Failure Current Measurement |
| DTC P3105 | 00: Control Module - Failure external Watchdog disabled |
| DTC P3106 | 00: Control Module - Failure external Watchdog Test |
| DTC P3107 | 00: Motor Supply Voltage Open Circuit |
| DTC P3108 | 00: Control Unit Supply Voltage Open Circuit |
| DTC P3109 | 00: System Failure - Torque Tube Violation |
| DTC P310A | 00: System Failure - Initial Position Search Failed |
| DTC P310B | 00: System Failure - Initial Position drift |
| DTC P310C | 00: System Failure - implausible Calibration value |
| DTC P310D | 00: System Failure - Position failure During Calibration |
| DTC P310E | 00: Mechanical Failure - Angle limit exceed |
| DTC P310F | 00: System Failure - Maximal Clutch Stress |
| DTC P3110 | 00: System Failure - Maximal ECU Stress |
| DTC P3111 | 00: Mechnical Failure - Clutch Worn |
| DTC P3112 | 00: Mechanical Failure - Oil Worn |
| DTC P3113 | 00: Initial Calibration not done |
| DTC P3114 | 00: Vehicle information option not detected or invalid |
| DTC P3115 | 00: HW Classification Missing |
| DTC P3116 | 00: Insufficient CAN Signals - Driving Stability |
| DTC P3117 | 00: Insufficient CAN Signals - TC Protection |
| DTC P3118 | 00: Insufficient CAN Signals - Driving Inconvenience Signals |
| DTC P3119 | 00: Insufficient CAN Signals - Driving Inconvenience Tires |
| DTC U0001 | 00: High Speed CAN Communication Bus |
| DTC U0100 | 00: Lost Communication With ECM/PCM 'A' |
| DTC U0101 | 00: Lost Communication With TCM |
| DTC U0121 | 00: Lost Communication With Anti - Lock Brake System (ABS) Control Module |
| DTC U0122 | 00: Lost Communication With Vehicle Dynamics Control Module (C-CAN) |
| DTC U0126 | 00: Lost Communication With Steering Angle Sensor Mod |
| DTC U0146 | 00: Lost Communication With Gateway or Cluster |
Factory Service Tools
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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.
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