System Inspection

Was the ECM/PCM just replaced or reflashed?
YES
- Using a GDS, perform "VIN WRITING" procedure. Refer to the latest Reference manual for GDS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Using a GDS, read VIN information.
  If there is no proper VIN information, perform "VIN WRITING" procedure.
  
  If VIN information exists, substitute with a known-good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM.
  
  And go to "VERIFICATION OF VEHICLE REPAIR " procedure.