Possible Causes

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

• EVAP-CSPS circuit open or shorted.
• EVAP-CSPS hose plugged or leaking.
• Defective EVAP-CSPS.
• Defective EVAP Canister Vent Control Valve (EVAP-CVCV).
• Defective EVAP Canister Purge Volume Control Valve (EVAP-CPVCV).
• Defective EVAP canister.
• Hose between EVAP canister and water separator plugged or leaking.