I need a schematic of the evap vent solenoid circuit for a 2003 chevy burb 1500 z71
It started doing the P0449 code so I took it off and hooked it up to a 12 v source and it worked fine and it's clean, I can blow through it and when energized it closes fine.
So I put a volt meter on the connector and turned the key on and 4 volts only.
I tried several grounds and a 12 volt source and found it is the 12 volt side that is bad, the ground from the PCM is fine.
So I need a schematic to find where the 12 volt source is and replace that wire.
Thanks!