Ambient temperature sensor OBD-II data - Toyota Yaris Forums

CTScott · 02-22-2015, 09:37 AM

So does the Yaris. I display the ambient temperature on my YarGauge (homemade diagnostic tool), but you have to talk to the AC ECU to get the data, rather than to the ECM (so it is not a standard OBDII PID, but rather a manufacturer specific diagnostic PID).

IllusionX · 02-22-2015, 11:29 PM

Quote:

Originally Posted by CTScott

So does the Yaris. I display the ambient temperature on my YarGauge (homemade diagnostic tool), but you have to talk to the AC ECU to get the data, rather than to the ECM (so it is not a standard OBDII PID, but rather a manufacturer specific diagnostic PID).

Does that mean Toyota uses the same sensor, and get the info from the AC ECU in some cars?

CTScott · 02-23-2015, 06:07 AM

Quote:

Originally Posted by IllusionX

Does that mean Toyota uses the same sensor, and get the info from the AC ECU in some cars?

Yes. But, some (including the 2010+ Yaris) pass that data to the ECM, so that it can report it with a standard OBDII PID.

02-22-2015, 09:37 AM	#1
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	So does the Yaris. I display the ambient temperature on my YarGauge (homemade diagnostic tool), but you have to talk to the AC ECU to get the data, rather than to the ECM (so it is not a standard OBDII PID, but rather a manufacturer specific diagnostic PID). __________________

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