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Home >> Hyundai >> 2014 >> Azera Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Driver Door Module Diagnosis >> DTC B1602-XX: Can Line Error >> Component Inspection

Component Inspection

Check internal errors of CAN communication units.

  1. Connect GDS.
  2. IG "ON" and engine "OFF".
  3. Select "DTC Analysis" mode.
  4. Disconnect CAN communication units one by one and monitor DTC to find the cause.
    Fig 1: IPM Circuit Diagram
    G08816057Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Identifying IPM And PCM Connector Terminals
    G08816058Courtesy of HYUNDAI MOTOR AMERICA

    * CAN communication units: IPM (Intelligent integrated Platform Module), DDM (Drive Door Module), ADM (Assist Door Module), CLU (Cluster), PSM (Power Seat Module), SCM (Steering Control Module), MFSW (Multi-Function Switch), SWRC (Steering Wheel Remote Controller), SMK (Smart Key Module).

  5. Is the code erased?

    YES 

    • Substitute with a known - good unit and check for proper operation.

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

    NO 

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