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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Electrical >> Body Electrical >> Wireless Power Charger Diagnosis (HEV) >> DTC B1603-00: CAN Bus Off >> Component Inspection

Component Inspection

  1. Ignition "OFF".
  2. Connect GDS to Data Link Connector (DLC).
  3. Ignition "ON".
  4. Clear all DTCs in the system with GDS.
  5. Re-check DTC in the system with GDS.
  6. Is same DTC stored in the system?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • Disconnect units/modules that configures CAN communication network one by one and then, check that DTC is erased with GDS.

    NO 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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