ive done a lot of secondary air jobs on all the toyota trucks but i dont think ive ever seen that. make sure ur air pump filter is still there because that was due to water intrusion from the pump.
the green mongoose cable is the one i use for work but i dunno if i'm allowed to give out the software (techstream lite which is basically full on techstream) ill check with someone and see what they say.
the way we diagnose them is sitting still with the steering wheel turned about 45 degrees and giving moderate throttle. if its the shaft it will make a noise when the slip is not the joints.
well i work for a toyota dealership as a tech lol. but sticker was 43ksomething. my final price after tax tag and title was still under sticker price. besides i can look up what a toyota dealer's cost of any car is so that also worked in my favor.