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P0449 Diagnostic Trouble Code Discussion for November 2009

EVAP Vent Solenoid Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0449
Help Request Posted
2006 Chevrolet Uplander 3.5L MIL Lamp on VIN: 1GBDV13L96
P0449: EVAP Vent Solenoid Control Circuit Malfunction. i have replaced th solenoid and i still have the same problem also i checked for power and there is power at the solenoid but i also commanded it on and off with scan tool but there is no change,so it appears the the ecm is not grounding the cicrciut any help ...
November 05, 2009