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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 109 (Cluster Module Diagnosis (HEV)) >> DTC B1603: CAN Communication Bus Off >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

WARNING: This page is about a different variant/trim than selected.
  1. Connect GDS.
  2. IG "ON" and engine "OFF".
  3. Select "DTC Analysis" mode.
  4. After erase DTC, keep the vehicle condition within "the enable conditions" (Refer to "DTC DETECTING CONDITION " table).
    Fig 1: Screen Display - CAN Bus OFF
    G10602877Courtesy of HYUNDAI MOTOR AMERICA
  5. Is the same DTC occurred again?

    YES 

    • Go to next procedure.

    NO 

    • Fault is intermittent caused by poor contact in the CLU's connector or was repaired and CLU memory was not cleared. Thoroughly 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.