www.toyodiy.com confirms that the part number is for JZZ31, 2JZ-GE <link>.
I have the engine ECU pinouts for the JZZ30, 1JZ-GTE on my wiki and I would expect the pinouts of C85 and C86 plugs to be the same as the JZZ31, 2JZ-GE you have!
C85 and C86 (as shown on my wiki) are the plugs that go from the engine ECU to the vehicle body loom, if that makes sense...they do this via some intermediate junction plugs, which you should be able to trace back from the engine ECU pinout using a multimeter...
My wiki gives a bit of information in regards to which pins are particularity important and how to wire these pins (e.g. M-REL, +B, +B1, BATT, IGSW).
You could also contact Jeff Harper to acquire the "Soarer Bible", and it has translated wiring diagrams that cover JZZ31 (and all of xZ30x)
http://wilbo666.pbworks.com/w/page/4...ngine%20Wiring
Cheers
Wilbo
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