Component Inspection

Check PCSV
1. Ignition "OFF"
2. Remove PCSV and check it for open stuck or leak
3. Measure resistance between terminals "1" and "2" of the PCSV connector.
  Specification: Approx. 19.0-22.0° (20°C (68°F))
4. Connect scan tool and Perform ACTUATION TEST for PCSV with scan tool
5. Check that clicking sound can be heard by actuation test.
  
  Fig 1: Scan Tool Display Screen - Actuation Test
  Courtesy of KIA MOTORS AMERICA, INC.
6. Monitor the PCSV signal waveform and verify that the ground voltage is less than approx. 0.3V ([1] ) and the surge voltage ( [2] ) is between 40 V and 60 V.
  NOTE: [1] and [2] refer to points in Fig 2.
  
  Fig 2: PCSV Signal Waveform
  Courtesy of KIA MOTORS AMERICA, INC.
7. Is the PCSV normal?
YES
- Substitute with a known-good PCM and check for proper operation.
- If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others

NO
- Substitute with a known-good PCSV and check for proper operation.
- If the problem is corrected, replace PCSV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.