Anyone ever do this operation on a 1st gen?

The A/C is blowing cold on the right side vents and warm on the drivers side vents. I ran a A/C diag and received code 21 w/o any beep. I'm wondering how to test or replace the sensor/ circuit? Thanks in advance....

 

check puredrifters FAQ on the 2LS, should have code problems and search here for your code to see if u find anything. search "code 21"

 

the most simple of all the codes, It means the sensor sees no sun (solar)

 

As per the Lexls.com website, the most common reason for that fault is... you're in your garage and it's somewhat dark.

I doubt that sensor is actually your problem. Try the diagnostics again in the sunlight to see if that eliminates the error code.

Good luck.