Probable Cause

Malfunction is detected when an improper voltage signal is sent to ECM from EVAP-CSPS. Possible causes are:

• EVAP-CSPS circuit open or shorted.
• Defective EVAP-CSPS.
• Defective EVAP Canister Vent Control Valve (EVAP-CVCV).
• Defective water separator.
• Defective EVAP canister.
• Faulty hose between EVAP-CVCV and water separator.