Check your wire from battery to starter, sounds like it may have been pulled loose.
If all you did was disconnect and reconnect the battery, it should function as normal. That is, assuming you disconnected the ground (negative) first when you took the battery out and reconnected the positive side first when replacing the battery. If you didn't, there's a possibility you toasted your ECM.
This was caused by a poor connection at the Battery. We disconnected and and reconnected the new battery and everything worked fine.
HEY BEEVIS....NOTHING will work after you disconnect the battery......DUHHHHH !!!!!
both of my autoseatbelts went out ,i disconnected the battery and reconnected and they worked .
I had a CD stuck in the CD player. When I had the battery changed, and the battery was disconnected for about 15 minutes then reconnected, I was able to eject the CD!
This happened to me just recently. Not sure why. To resolve I disconnected the battery for 15 minutes reconnected and problem resolved.
UR ALARM IS MALFUNCTIONING
Can you be more specific? Was your battery disconnected or did it lose it's charge? If you did not disconnect the computer, it would not need to be reconnected. If your battery was dead or disconnected, simply remove the positive battery cable for about 10 minutes and re-connect it. This should clear your code. Even if the code does not clear you should have no problems with the function of your car.
I have a 2006 Pontiac Solstice. I disconnected the battery terminal for about 45 minutes. When I reconnected it the light stayed off. Good luck
P1684 - Transmission - Battery Power To Module Disconnected if battery was disconected for a while or battery replaced, it can cause to set this DTC
Disconnect the negative terminal of the battery Leave it disconnected for an hour. (The amount of time it takes to replace the battery). Reconnect the negative terminal of the battery. This works because a transient (voltage spike, noise) is generated when the terminal is reconnected. This is not necessary when the battery is replaced because the negative terminal is normally the last connected. However, when a car's battery dies in storage for example and is recharged with disconnecting the battery, the car might not start because the computer is not running.
The alarm of a 2004 Honda Accord will go off when the battery is disconnected because it is part of the anti-theft systems programing. When the battery is reconnected the alarm automatically arms itself.