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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 141 (Auto Headlamp Leveling System Diagnosis) >> DTC C1620: 1st Set-Up Not Completed (Height Sensor Not Calibrated) >> DTC Information And Inspection >> Monitor DTC Status

Monitor DTC Status

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
  1. Plug GDS to Data Link Connector (DLC).
  2. Turn "ON" the ignition switch.
  3. Select "Diagnostic Trouble Codes (DTC)", and click "DTC Status" to check DTC information.
  4. Read the "DTC State" parameter.
  5. Is the DTC State "Present"?

    "PRESENT" 

    • Inspect the rear vehicle height sensor (for possible accident and connection state). If it is normal, perform "Parameter Setting and Calibration" on the "Optional Function".

    "HISTORY" 

    • Fault can be intermittent. Or, the AHLS ECU's memory was not cleared after repair. Thoroughly check connectors and wire harness for looseness, poor contact, bending, corrosion, deterioration, or damage.
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