I can’t access the specific test protocols for your Tacoma, but here’s some for another Toyota productof the same vintage. Perhaps they’ll help. Or, you could ask the parts department (NOT the service department) at your local dealer’s to print the test protocols for your truck.
http://tijil.org/Scion_Docs/Scion_06_misc_docs/2007sciontc_ncf%20Folder/2azfeemi.pdf
By the way, have you chacked for stored fault codes? That’d be the best place to start.