99 Camry I4 MIL ON P0446

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I have a 1999 toyota camry. The trouble codes listed were PO401 & PO446. I tested the SVS for EVAP all ok. I tested VSV for Pressure sensor. VSV was ok but I found 11.90 volts coming into it. So I traced the wiring up through to the PCM. (I had the same reading to there) I unplugged from the PMC and tested the output pin and it too had an 11.90 volt reading. My question is, is there anything that will cause the PCM to send that much voltage through that circuit other than having a PCM malfunction? I did not test anything for PO401 circuit. Thank you very much for any help I might recieve