Hello All,

In using the diagnostic mode on my 91, the diagnostics work for about 10-15 minutes, then goes back to normal IPC readings. When I try to re-enter, the panel will flash for about 1/2 second but not go to diagnostics anymore. My guess is that it's a temperature thing, it quits after warmup. Has anyone had this problem, and which module does the actual operation of viewing the stored and current codes? Maybe I could put a small fan on the unit in order to keep the temp down, and then look to get a new unit, whichever it is!

Thanks,
Jack C.