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HOMESERVICE MANUALSGENESIS2020G90 3.3T PREMIUM, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASSCC/AEB DIAGNOSISDTC C1620-78: ALIGNMENT FAILEDDTC INFORMATION AND INSPECTIONDTC SETTING CONDITION
2020 Genesis G90 3.3T Premium, AWD

DTC Setting Condition

2020 Genesis G90 3.3T Premium, AWDSECTION DTC Setting Condition
Trouble shooting Condition Possible Cause
Main action
  • Monitor the sensor alignment value
  1. Sensor Alignment Error
  2. FAC/SCC module installation (Horizontally or Vertically) Error (Check for bracket, vehicle deformation)
Prerequisite condition
  • Battery Voltage is between 9V and 16V (Stop/Driving mode)
  • Ignition has been on for over 2 seconds (Stop/Driving mode)
  • Vehicle speed is more than 51 km/h (31.6 MPH) (Driving mode)
Threshold Value
  • Reflector alignment is not initialized (Stop Mode)
  • Horizontal angle error (more than ±3 degree) after reflector alignment (Stop/Driving Mode)
  • Vertical angle error (more than ±3 degree) after reflector alignment (Stop Mode)
Diagnosis Time
  • Immediately
MIL
  • FCA/SCC operation cancelled/inhibited
  • FCA/SCC warning lamp ON
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.