carringb wrote:dubdub07 wrote:
Battery connected or not, the Ford tranny is just in neutral and won't go into gear.
WW
Battery disconnect is a transmission protect procedure. If you don't disconnect the battery, AND it happens to run low, the PCM can shift the transmission into Park, as that is the default setting when low voltage. "PARK" in the dual-clutch transmission is actually just "letting-out" the clutch on both gear sets, causing them to bind and hence not allow movement. There is not park-pawl, like a traditional automatic. If the dual-clutch goes into "park" mode while moving, best case the clutches are roasted, but it could the blow the whole transmission up.
A charge-line *should* prevent the issue, but might not be a bad idea to monitor toad battery voltage, in case the charge line isn't charging for some reason. This would be easy to do with a wifi OBD2 dongle, and even some bluetooth ones might have enough range.
