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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 90 (Immobilizer System Diagnosis (HEV)) >> DTC P1674: Immobilizer-Transponder Status Error >> Component Inspection >> Component Inspection

Component Inspection

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  1. Check transponder.
    1. IGN "ON" & Engine "OFF".
    2. Neutralize PCM and Register transponder key by scantool.
      NOTE: Pin code is required to Neutralize PCM and to Register transponder key
    3. Are Neutralizing and Registering completed normally?

      YES 

      • Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known-good transponder and perform key teaching procedure with scanner.

        If the problem is corrected, replace transponder and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.