Code P0449

You can do the voltage test etc like it says in the trouble tree I know you cant command the veny solenoid like it says unless you have a tech2 scan tool with the correct software. Most likely its not bad new parts its just something else wrong. Its gong to be the wiring terminal tightnes corrosion or the module. If you actual do the steps that you can do without using the scan tool that would most likely find your problem. You say the wire looks good but wire can be bad under the insulation broken copper strands corrossion etc. Also loose open terminal tightness. You can test the new parts with a ohms test if they list the values there supposed to be in the service manual. They have gotten away from that though as you can see by the trouble tree they just have you check everything till you narrow down to the failed part. So if you unable to follow my and the service manual instructiins then your just going to have to take it in to be reapaired.

Keep me posted I will help you out with any questions etc.

Key on engine off you should have battery voltage to the A terminal at the vent solenoid connector whats the reading you have?

The orange wire should have power key in the run position of it doesnt look in the under hood fuse box. See if the prem aud fuse has power to both sides of it. That feeds power to the vent solenoid.

The wire diagram I was looking at was wrong it appears. You want to check the emiss fuse for power to both sides with the key in the run position. It looks like the third fuse down in the diagram.

Now you have to figure out why theres power at the fuae but not at the connector.I would start at the bottom of the fuse box that wire splits off the fuse one wire goes straight to the vent solenoid.

Your welcome glad to hear you got it fixed.