This is a EV100 with a transistor and the 3 blue capacitors. I think the capacitors must charge up when the key is turned on then the main line contactor (+ batt.) gets a signal from the card (wire 24) to close the contactor. After sitting, with the key off, then turned on, the capacitor only charges to about 40 volts and the contactor does not turn on. Code -51 shows (caps. not charging). The card is not sending the negitive signal to the contactor coil. If I push the contactor in it will turn on and stay on. The capacitor is then at 50 volts (batt. voltage). If I pull the plug with the 24 wire (little 1/2" square plug) off the card and plug it back in it will turn the main line contactor on even if the capacitors were only at 40 volts. Everything is fine until parked with the key off for a few minutes and then the capacitors slowly loose their charge and drop below 40 volts and it will not come back to life when the key is turned back on. Bad card??? Thanks for any help.