DTC P0449: EVAP System Vent Control - Circuit Malfunction (With ORVR System): Condition

DTC sets when Engine Control Module (ECM) detects EVAP Canister Vent Valve (EVAP-CVV) output voltage is different from command signal (circuit open or short). MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• ECM malfunction.
• EVAP-CVV malfunction.
• EVAP-CVV circuit malfunction.