Component Inspection

The purpose of measuring PCSV resistance is to find if the open circuit is in the component.

1. Check Operation of PCSV
   1. Ignition "OFF"
   2. Disconnect valve connector and Remove Purge Control Valve.
   3. Check that no air flows through valve.
   4. Apply 12V and a ground to terminals 1 and 2 of the Purge Control Valve. (To sensor side)
   5. Verify that air flows through valve
      Fig 1: Applying 12V And Ground To Terminals 1 And 2 Of Purge Control Valve

      Courtesy of HYUNDAI MOTOR CO.
   6. Does Purge Control Valve work properly ?

      YES 

      • Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known-good PCSV and check for proper operation. If the problem is corrected, replace PCSV and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
      NOTE: The purpose of measuring injector resistance is to find if the open circuit is in the component. Check the continuity between signal line and ground line.