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Disable BMS next gen problem

Posted: Wed May 03, 2023 8:34 am
by Hugo12
So ive decided to turn off the BMS on my next gen ranger which i did through the non asbuilt selections in the BMS, and also turned the BMS type from LIN to none to stop the charge system service alert coming on the dash. I have done this because i run a dcdc in my caravan and one in the tub for a dual battery and didn't want to run ignition wires to the dcdc's, and also it stops the start/stop system functioning which is n added bonus.
My problem is, now it wont remote start from the ford pass app and i have received a notification in the app that it has entered deep sleep and needs to be charged, which it doesnt as its charging at 14v and the car starts fine. Does anyone know if the deep sleep function can be turned off (i found a reference to it being possible in the APIM but not sure about that) or if there is another work around to having the BMS disabled but still being able to use the start function from the app?
Any advice would be appreciated.

Re: Disable BMS next gen problem

Posted: Thu May 04, 2023 9:16 am
by saeb
As you have found out, no you cannot disable the BMS in a NextGen without causing other issues. There is no work around for the work around.

Do the job in full and run the ignition feeds or at least one of them.

Re: Disable BMS next gen problem

Posted: Fri May 05, 2023 5:09 am
by Hugo12
Thanks mate for the confirmation, looks like ill change it back and go the other way with it when i get back home. I honestly thought it would have worked seeing as the ford body builder manual has disabling the BMS as an option for non DCDC applications but maybe they would give the customer that option and let them know no remote functions will work afterwards.