Note. Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .
Note. Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.
Diagnostic Aids
Malfunction code is set when solenoid coil surge voltage (system voltage +2) is not detected when EVAP emission vent solenoid is turned on/off. Check for following possible problems
- Open or short to ground between ECM relay and Canister Control Valve (CCV).
- Open or short to voltage between CCV and Engine/Transaxle Control Module (E/TCM) or Engine Control Module (ECM).
- Short between CCV and E/TCM or ECM.
- Faulty CCV.