2018 Freightliner M2 with DD5 4 cylinder engine. VIN 1FVACWFB3JHJR9995. Unit will start and run about 10 seconds and shut off. Active codes SPN625 / 9 and 1231/9. Removed 21 pin connector from ACM and no power to acm on pins 11, 12, 14, 15, and 18. (check per ... Login to read more.