Sorry I’m sure this has been covered but I couldn’t find it looking on my tiny phone screen. I recently purchased a 1986 M1008 from government auction. While testing the gp controller I found it was actually triggering the solenoid but it kept kicking on and off. But functioned fine when I grounded the light blue wire. I have it bypassed with a push button switch for now but would like to get it back to original. Can someone tell me what diode or switch on the controller would be the cause for it to kick out so early and then turn on and off? Seeing as no one is making the gp card anymore.