LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2012 >> Genesis 5.0 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 46 (Steering Column Module Diagnosis) >> DTC B1602: CAN Error >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

WARNING: This page is about a different variant/trim than selected.

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 And SCM - Circuit Diagram
    G08852549Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Identifying IPM And SCM Connector Terminals
    G08852550Courtesy of HYUNDAI MOTOR AMERICA

    *CAN communication units: IPM (Inter Panel Module), FAM (Front Area Module), PDM (Power Distribution Module), DDM (Drive Door Module), ADM (Assist Door Module), ECW (Electronic Control Wiper), CLU (Cluster), MFSW (Multi Function Switch), PSM (Power Seat Module), SCM (Steering Control Module), PTM (Power Trunk Lid Module), FBWS (Front Back Warning System), DATC (Dual Auto Temperature Control 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.