Component Inspection: Notes

Check transponder and ECU status
1. IGN "ON" & Engine "OFF"
2. Monitor the "KEY STATUS" and "ECU STATUS' Parameter on the Scantool.
  Specification : 'LEARNT'
  
  Fig 1: Scan Tool Screen Display - KEY STATUS
  Courtesy of HYUNDAI MOTOR CO.
3. Are "KEY STATUS" and "ECU STATUS' Parameter within specifications?
  YES
  
  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.
  
  YES
  
  Go to " 2Check transponder" procedure
Check ECM
1. IGN "ON" & Engine "OFF"
2. Neutralize ECM and Register transponder key by scan tool.
  NOTE: Pin code is required to Neutralize ECM and to Register transponder key
3. Are Neutralizing and Registering completed normally?
  YES
  
  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.
  
  NO
  
  Substitute with a known-good ECM and check for proper operation.
  
  If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NOTE: ECM substituted for old one must be in "Virgin" or "Neutral" status and Pin code is required to Neutralize ECM and to Register transponder key