Every time I start my car I get a series of beeps and a "ER" message on the screen where the temp is displayed. No codes on the OBD side. Everything seems to work fine.

Do I need to take this to a shop that has a special reader or is there a way I can determine the problem by the beeps like a PC? Could this also be why I can't turn of the ASC?

Thanks

 

Did some digging and figured out how to pull the codes. I'm getting the following.....

12 - Ambient temperature sensor malfunction true, it does not work
23 - Refrigerant pressure switch malfunction AC feels cold so I'm not sure about this one.
46 - Foot vent servo I suspect this is residual error from when my alternator died and I was getting low voltage errors everywhere.

I cleared all the codes and 46 disappeared but 12 and 23 remain. I'll have to investigate. Good news is the beeping and "ER" message stopped coming up.

 

do a hard reset and it will "disappear" and be fine! I just had this happen tonight when I plugged up the diagnostic scanner with the engine already running and it killed my guages and gave the error. Did a hard reset and it cured all.

 

The ambient temp sensor is located in the dash behind a little grill next to the boot unlock button.

To access you need to pry the grill out, there's a how to in this forum somewhere about cleaning this as it gets covered in dust over time. The aspirator fan and tube also get bunged up so a good clear out might sort the ambient temp sensor out.