There are various procedures in the manual that can be done one way using a computer and Techstream, and another way by shorting some pins at the diagnostic connector. Toyota's instructions refer to the pins by name, like CG, TC, TS, or AB. When I had my Gen 1, I learned which pin numbers those were by looking in the manual. Then I assumed they'd be the same in my Gen 3. Hello! CG is still pin 4. TC is still pin 13. I don't think there's an AB pin any more (in Gen 1, you could command the airbag ECU with it). The treacherous one is TS. In a Gen 1, it's pin 14, but in a Gen 2 or 3, it's pin 12! (In a Gen 4, I don't think there is a TS.) They apparently moved it when they started using CAN in Gen 2, because the old pin for TS, 14, is one of the defined CAN pins. So if you're in a Gen 3 and you mistakenly try a "TS-to-CG" procedure using the pin numbers you remember from Gen 1, you end up grounding a side of the CAN bus, which isn't a disaster, but produces a chorus of DTCs from a heap of ECUs that temporarily couldn't talk to each other, that you then have to go and clear. And if you're working on a Gen 1 using pin numbers you learned from Gen 2 or Gen 3, that won't work either. -Chap
For my 2011 Prius (piece of crap), I have this. Does anyone see anything out of whack? Not sure that I have TS/TC right, may be the reverse. p01 p02 p03 p04 p05 p06 p07 p08 nu nu nu CG SG CH KB nu IG nu nu TS? TC? CL nu Pwr p09 p10 p11 p12 p13 p14 p15 p16 CG chassis grd SG signal grd CH CAN Hi KB Kbus IG Ignition (pulsed upon ignition) TS Toyota Status TC Toyota Control CL CAN Lo Pwr 12v power nu not used
You do realize that this part of Priuschat is for gen 1 Pri's? You might try posting your questions in the appropriate section of the forum.
