okie81

P0505 check engine light code. When searching and tracking down information on this code, I'm getting conflicting information. For the most part, its says IAC valve needs cleaning/replacement. Ok, that's fine, but this morning I went to the dealership to get an IAC gasket and they tell me there isn't an IAC valve on 2001 and up 4runners. They gave me this info too :




From this link from a 2000 Tacoma 3.4, it points to the IAC valve, but according to the info above, a 2001 4runner is different.

Can anyone clarify? I'd like to understand this a little more before I dig in.

Thanks

okie81

****UPDATE:****
Digging up more info and talking to a couple people, it seems somewhere in between late 2000 and early 2001, the 4Runners switched to "Throttle by Wire" which changed the FSM procedure.

I did all the resistance testing on page 3. The throttle control motor wasn't within specifications (0.0 reading). Has anyone else had this problem or am I going to have to replace the whole throttle body like it says?

eddieleephd

http://www.tankota.net/repair/Repair..../cip21022.pdf
it is possible after reading this page that it is due to improper communication between the Tps and throttle motor actuator. I would check this first.

I see the throttle control motor is replaceable.
look here http://www.ncttora.com/fsm/1996/SIL/fsm/repair.html
for: R.M. 2002::SFI (5VZ-FE): Throttle Body: Components (4Runner)