would a relay switch cause a P0446 code & where would I locate that relay switch

Question

I'm trying to run down a relay switch that might cause the obd to show a P0446 code, if there is one where will it be?located

Answer 1

It's very unlikely that a relay will cause that code, in fact, there is not a dedicated relay for the Vapor Pressure Sensor, which is the most common problem for the !999 Toyota Camry ( the most common problem when the EVAP canister or canister hoses are not damage). There is also a Factory Service Bulletin that recommends replacing the Vapor Pressure Sensor.

The Vapor Pressure Sensor is attached to the EVAP canister on the back of your car.