Component Inspection

■ Check Internal Errors Of CAN Communication Units 

1. Connect KDS/GDS.
2. Ignition "ON" and Engine "OFF".
3. Select "Diagnostic Trouble Codes (DTC)" mode.
4. Disconnect CAN communication units one by one and monitor DTC to find the cause.
5. Is the DTC 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.