First the dash self-diagnostic: I found this post in the FAQ & DIY forum, (https://g35driver.com/forums/engine-drivetrain-forced-induction-diy/6354-diy-speedo-tach-gauges-self-diagnostic.html), but the pics don't seem to be working and there is no text explanation on how to get this to work. Anybody know how to get the dash to do its self-test?

Climate Control diagnostic mode: I was following the thread about what does the inside temp reading mean and saw where someone posted how to check the readings of the three temp sensors in the system (https://g35driver.com/forums/g35-sedan-v35-2003-06/58883-does-inside-temperature-number-mean-anything.html) as well as another one that explained how to adjust the calibration of the inside sensor.(https://g35driver.com/forums/g35-coupe-v35-2003-07/37529-temperature-control.html)

What I'm asking is does anyone know of what else can be checked or adjusted on either of these?