ECM or ECU pinouts

[850spdr]

Hi-
I am new here and I own a 2013 Yaris which won't allow me to communicate with the ECM using Techstream. I subscribed to TIS to get the pinouts but the drawings were for a different car, maybe an earlier year. Can anyone tell me where I can get correct information on the pins and signals for my ECM? Part number is 89661-52R40.
Thanks

[CTScott]

Originally Posted by 850spdr

Hi-
I am new here and I own a 2013 Yaris which won't allow me to communicate with the ECM using Techstream. I subscribed to TIS to get the pinouts but the drawings were for a different car, maybe an earlier year. Can anyone tell me where I can get correct information on the pins and signals for my ECM? Part number is 89661-52R40.
Thanks

Do you have a real Mongoose brand USB adapter for techstream or did you buy one of the ebay Chinese clones? A real one will work with no problem with your 2013, as I have plugged my Mongoose VCI into many 2013 and newer Yaris and ran techstream without issue. The ebay ones are really a crapshoot.

[850spdr]

The module I bought runs on Windows 10 and is supposed to be the latest chipset and software available. It seems to run fine when I talk to immobilizer and body ECU - instrument cluster responds to real time monitoring but I can't change the indicators. I get 0100 errors from these modules - can't communicate with ECM. The tool won't talk to it directly, either. Can't talk to any other modules directly, but the instrument cluster sees them when I plug them in. I measured the resistance of CAN bus with battery disconnected and it is 61 Ohms, 132 Ohms with ECM unplugged. There appears to be a lot of chatter on the bus judging from the red light on the DC3 connector mate. The modules that don't talk may be on part of the bus that gets isolated by the junction connectors. Where are these JC's located on my car?
The car cranks fine but no spark or fuel.
Thanks for any help you can give!