I believe Toyota Techstream software can see what all the sensors are reading. I need to troubleshoot a seat heater malfunction on my Land Cruiser LX200.
Alright, Techstream cable arrived. I’d get the newer VXDiag VCX Nano Toyota cable. You can buy it from their website (vxdiagshop.com) if that feels safer. The reports are that it’s much faster and can do more things within TechStream. They send a newer version of Techstream, not that the newer version will buy you anything. I suggest trying this one because using Techstream with the J2534 adapter takes quite a bit of patience.
I was able to diagnose a seat heater malfunction to a faulty sensor. It turned out the sensor had been unplugged by the previous owner/dealer in the seat. Techstream was able to tell me specifically that the temp sensor in the driver’s seat was malfunctioning.
I have been able to program Key fobs and diagnose systems with it for everything I’ve needed so far.