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2003 Avalon Evap system diagram?
01-06 IS300 Evaporative Emission Control System Diagram
Does anyone have a diagram of the 2003 Evaporative system? I would like to see the hose connections to the canister. I have Two Codes:

P0442 evaporative emission control system leak detected (small leak)
P0446 evaporative emission control system vent control circuit malfunction.

I took the car to the dealership at which point they said that the problem was my gas cap which they replaced. A week later the CODES are back.
I would like to trouble Shoot and fix without going back to the Dealership for service. Maybe for Parts

Any diagrams would be Greatly Appreciated.
Thank In Advance
 

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Code P0446

Code P0446 is the more specific description. It means that the computer did not see the proper voltage(s) at it's connection to the vent control valve. The control valve coil may be open or 12v power may be missing from this winding. The computer looks at the connection and expected to see 12 volts DC when it's off. Then it grounds the connection to turn it on and expects about 0 volts. If either measurement is incorrect, it sets code P0446.
 
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