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Home >> Kia >> 2015 >> Soul Base, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 129 (Body Control Module (BCM) Diagnosis) >> DTC B1603-00: CAN Bus Off >> Component Inspection

Component Inspection

WARNING: This page is about a different car, the 2016 Kia Soul EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to "BCM REMOVAL " and "PASSENGER COMPARTMENT JUNCTION BOX (SJB) " and remove necessary parts to get access to BCM, SJB (Smart Junction Box), Audio, Video & Navigation Unit (Head Unit), and SMK (Smart Key) Unit.
  2. Connect GDS to Data Link Connector (DLC).
  3. Ignition "ON"
  4. Disconnect unit connector one after the other.
  5. Check for control unit causing the fault by communicating BCM, SJB, Audio, Video & Navigation Unit (Head Unit) and SMK Unit with GDS.
  6. Does GDS able to communicate with any of systems when one unit connector is disconnected?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace Control Unit that casuing the fault and then go to "Verification Of Vehicle Repair " procedure.

    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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