Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Working on a Mazda6(GG) intermittent no crank. Security light blinks out DTC 13, pwr & gnd are good, both wires to the PCM (orange and blue 12v and green shows square wave then goes 12v initial key on) on the coil antenna.
The vehicle did start with both keys at the shop after sitting for a while but problem returned in minutes. I'm trying to get a new coil antenna to try.
