I've been trying for 3 days to search this and many other sites and tried everything with no luck. My 06TBSS will start, from all my research here is all the info I have come up with so far. It doesn't turn over, the fuel pump does not come on, I have no CEL(key on engine off), the gear indicator light is off, headlights always on, I have no communication to ecm via obd port. I have checked the ignition switch, I have checked all fuses, checked all relays, I have pulled harnesses off ecm cleaned with electrical cleaner checked pins and reinstalled, I have split the fuse box cleaned checked circuits and reinstalled, I have checked the fuses that I read are supposed to power the ecm, and fuse 23 gets no power. Does anyone know where 23 gets its power, or what to check next.