Error code readers (ODBII)

[devinlamothe]

Originally Posted by CTScott

Any standard one will work. I have a homemade one (based on a PIC16F877) and an ELM327 and both work fine. The PDF manual for the one you bought doesn't mention "ERR", so it may be a malfunction of the device.

Unless your Malfunction Indicator Light was on as well, you won't see a stored DTC. The TPWS and ABS ECU's have their own reporting over the CAN bus, typically accessed with the Toyota TechStream tool. You can get the TPWS ECU to report its error via flashes of the ! light. See the following post for how to make it do so:

http://www.yarisworld.com/forums/sho...8&postcount=11

Yeah I looked through the manual and didn't see ERR anywhere either.

The "!" I was refering to was the parking brake light, not the TPWS since I don't have that on my car (2007 model, year before we got them in Canada).

It could be because the lights are no longer lit on my dash so it's not giving me any codes.

So the Scanguage is the way to go if you want to read stored codes?