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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Air Conditioning System Diagnosis (HEV)) >> DTC B1685: Engine RPM Fault - CAN Signal >> Scantool Diagnostics >> Monitor Scantool data

Monitor Scantool data

WARNING: This page is about a different variant/trim than selected.
  1. Connect GDS to DLC.
  2. Check for PCM DTC(s).
  3. Clear any PCM DTC(s).
  4. If no PCM DTC(s), select the "Engine RPM" parameter.
  5. Engine RUNNING: Observe Engine RPM while varying RPM's
  6. Is the Engine RPM normal?

    YES 

    • Check for any related CAN DTC(s) and repair or replace as necessary. Clear DTC(s) and confirm no DTC(s) return.
    • This is a intermittent problem caused by poor contact of Control Module
    • Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector.
    • Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO