Monitor DTC Status

Head Lamp

Automatic Headlamp Leveling System - C1621 Excessive Operating Temperature Monitor Scantool data

Monitor Scantool Data

1. Connect scantool to Data Link Connector (DLC).
2. Engine "ON" and Head lamp"ON"
3. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode and Read "DTC Status" parameter




Fig.1) DTC C1621
4. Is the DTC C1621 present?