GDS Data Analysis

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: Screen Display - CAN Bus Off

   Courtesy of HYUNDAI MOTOR CO.
5. Is the same DTC occurred again?

   YES 

   • Go to next procedure.

   NO 

   • Fault is intermittent caused by poor contact in the SJB's connector or was repaired and SJB memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.