Component Inspection

Check internal errors of CAN communication units.

1. Connect GDS.
2. IG "ON" and engine "OFF".
3. Select "DTC Analysis" mode.
4. Replace the Power Window Main Switch with the new one and check DTC again.
   Fig 1: IPM Diagnostic Circuit Diagram

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Identifying IPM Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA
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.