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MyLab-odyssey / ED_BMSdiag

Retrieve battery diagnostic data from your smart electric drive EV.
MIT License
51 stars 19 forks source link

2014 Smart Fortwo battery communications shut down #26

Closed ddt3055 closed 4 years ago

ddt3055 commented 5 years ago

My 2014 Smart Fortwo which I just purchased started with a depleted battery with a total battery voltage of 30v. I was able to bring the overall voltage back up to 298 volts and I installed the pack back in the vehicle. The vehicle would not communicate with the battery pack so it won’t charge nor will it start. I took it to the dealer and they said there is problem in the pack where the can bus shut off and it will not turn back on to communicate with the battery. I have a printout of the stored codes and the codes that are current. I just need help I am trying to build this with the high school auto shop kids but without a safe battery the school won’t take it on the campus.

ddt3055 commented 5 years ago

I used the guidance of a couple past users to charge my battery pack after opening it. I just don’t think it activated after it charged up.

ddt3055 commented 5 years ago

P1D7800 protects against battery discharging is activated

P14F300. HV battery module have been deactivated due to cell voltage too loo

P0DE6FA the voltage of HV battery module are too loo

ddt3055 commented 5 years ago

P180D13 control unit HV battery has performed a system shutoff there is an open circuit

ddt3055 commented 5 years ago

I replaced the bms control unit and the voltage sensor and made sure all module cells were charged and then installed the battery pack back in and the dealer won’t work on the car because they said it has been modified. I have no other options there is no other service centers and I need to have the battery system cleared and reset any ideas