Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Kia >> 2016 >> Optima EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 61 (Cluster Module Diagnosis (HEV)) >> DTC B1602: CAN Error >> Component Inspection

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: CAN Communication Units Circuit Diagram
    G11822404Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: CAN Communication Units Connector Terminals
    G11822405Courtesy of KIA MOTORS AMERICA, INC.

    *CAN communication units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat 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.