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.