ista KL: 15 voltage is 0.0v

[arthur101]

hi mates I have a problem using my ISTA the voltage at the top right of the ISTA KL: 15 turned 0.0v every time I turned off the ignition and leave the car for how many minutes. Only happens when it's been off the ignition for a few minutes but when you turn on immediately the voltage is 12.4. I don't know if there is something wrong with my installation but when I use the old ISTA software there is no issue on KL: 15 voltage.

[ek1978]

looks like you don't know what is KL15

KL15 is ignition switch position #2 (on) , which means once the doors are open ( depending on which car , typical post where people don't mention the most important info about car and which interface they use ) or the start/stop button being triggered , KL15 goes to 0V