Component Inspection

Check Canister filter.
1. Ignition "OFF".
2. Detach Canister filter.
3. Check Canister filter for blockage.
4. Is Canister filter contaminated?
  YES
  - Substitute with a known - good Canister filter and check for proper operation.
    If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Go to " 2 Check CCV" as below.
Check CCV.
1. Ignition "OFF".
2. Measure resistance between terminals "1" and "2" of the CCV connector.
  1. Specification: Approx. 23~27Ω (20°C (68°F))
3. Connect Scantool and Perform ACTUATION TEST for CCV with scantool.
4. Check that clicking sound can be heard by actuation test.
  
  Fig 1: Display Actuation Test For CCV
5. Monitor the CCV signal waveform and verify that the ground voltage is less than approx. 0.3V (1) and the surge (2) is between 40V and 60V.
  
  Fig 2: Monitoring CCV Signal Waveform
6. Is the CCV 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.
  NO
  - Substitute with a known - good CCV and check for proper operation.
    If the problem is corrected, replace CCV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.