First off - DON'T keep driving your Sequoia. It's NOT SAFE!!!
Has the vehicle gone to a shop and been properly diagnosed? OR did someone just give you a guess after hearing about it?
I recommend towing it to a professional auto repair center and have it properly diagnosed ASAP!
〉 Answered on Sep 12th, 2013 by Amy Mattinat, Owner and Author at Auto Craftsmen Ltd
Yes it is a necessary component, if equipped. The majority of newer cars are running much more complex electrical systems where one sensor will affect the outputs of multipule modules. Take it to a qualified shop for diagnosis. That sensor may be an issue, but it might not be the only issue.
〉 Answered on Sep 12th, 2013 by Helaine Kurot, Owner/Technician at 360 Automotive