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 MANUALSGENESIS2020G90 3.3T PREMIUM, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCESCC/AEB DIAGNOSISDTC C1620-78: ALIGNMENT FAILEDDTC INFORMATION AND INSPECTIONDTC DATA ANALYSIS
2020 Genesis G90 3.3T Premium, AWD
DTC Data Analysis
2020 Genesis G90 3.3T Premium, AWDSECTION DTC Data Analysis
- Turn the ignition switch 'ON' & Vehicle 'Stop'.
- Plug GDS to Data Link Connector (DLC).
- Diagnose the FCA and select the "Alignment State" parameter in the "Current Data" menu of GDS.
# Specification of Align state:
- Not Executive: Sensor alignment not completed - Perform the sensor alignment.
- Success: Sensor alignment completed success.
- Time out: Sensor alignment failed. Time exceeded - Perform the sensor alignment again.
- Unknown: Sensor alignment failed. The cause unknown - Check the sensor surface status/sensor temperature/voltage status/abnormality in CAN communication.
- Target Not Found: Sensor alignment failed. Target unrecognized - Check the Target position.
- Horizontal Multiple Target Found: Sensor alignment failed. Multiple targets recognized (horizontal) - Check for the existence of other target in the horizontal direction.
- Incorrect Target Range: Sensor alignment failed. Distance error between the sensor and target - Check the distance between the sensor and target.
- Target Angle Deviation: Sensor alignment failed. Target shake - Check the installation status of target.
- Horizontal Bad Angle: Sensor alignment failed. Calibration range exceeded (horizontal) - Check the installation status of SCC Radar.
- Vertical Bad Angle: Sensor alignment failed. Calibration range exceeded (vertical) - Check the installation status of SCC Radar.
- Market Code Not Correct: Sensor alignment failed. Variant coding input error - Check the local specifications for the relevant vehicle type.
- Hardware Failure: Sensor alignment failed. Sensor failure - Need to replace the SCC Radar.
- Vertical Multiple Target Found: Sensor alignment failed. Multiple targets recognized (vertical) - Check for the existence of the target in the vertical direction".
- Check and repair according to the type of sensor value, perform the "Radar Sensor Alignment" and check if the error code occurs again.
- Is the DTC present?
YES
- Repair according to the detailed description of failed alignment.
- Repair or replace the relevant component(s) as necessary, and go to "VERIFICATION OF VEHICLE REPAIR ".
NO
- Go to "VERIFICATION OF VEHICLE REPAIR ".
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.