I just recently bought a 2019 Tesla MS performance 60k miles after driving it fault free for a couple months, a BMS_F107 fault came up and the car will not drive or charge now. The weather was very cold and rainy and I had charged the car to 100% for the first time the day before the fault. I have read many of your posts on here, and really appreciate the information. After having the car towed home, I replaced the 12V battery and tried to the reset the car. The fault would not reset and car would not drive. I decided to drop the battery because all information on this fault suggested moisture ingress and corrosion in the battery.
I removed the battery from my car and took the lid off. The pack is very clean and dry with no damage visible to the bricks, wiring, boards or case. I made a jumper harness to plug the HV battery into the car while the battery is on the ground so I can see the cell voltages using ScanMyTesla(SMT).
I tried swapping the bmb data plugs to better understand the which brick corresponded to which cells. I realized this was no help since the BMBs are all CAN. After inspecting every pack and plug visually I also checked the BMS boards and connectors. I replaced the short BMS harness. I could find no issues or anomalies and all voltages reported fine on SMT. Still the F107 fault would not clear.
I finally broke down and got a month long subscription to Toolbox3 last night and connected to the car. There is an action in there to reset that fault. Well I'ld like to report that it work or seemed to. After resetting the fault it has not come back this morning.
I still have the battery on the ground. I also made a charging extension cord to charge the battery on the ground. Ill charge the battery and see if it still checks good. Ill will report back.
Is there another way to reset the F107 fault besides Toolbox3? Also I damaged one of the aluminum spacer bolts on top of the battery does anyone have a spare?
I removed the battery from my car and took the lid off. The pack is very clean and dry with no damage visible to the bricks, wiring, boards or case. I made a jumper harness to plug the HV battery into the car while the battery is on the ground so I can see the cell voltages using ScanMyTesla(SMT).
I tried swapping the bmb data plugs to better understand the which brick corresponded to which cells. I realized this was no help since the BMBs are all CAN. After inspecting every pack and plug visually I also checked the BMS boards and connectors. I replaced the short BMS harness. I could find no issues or anomalies and all voltages reported fine on SMT. Still the F107 fault would not clear.
I finally broke down and got a month long subscription to Toolbox3 last night and connected to the car. There is an action in there to reset that fault. Well I'ld like to report that it work or seemed to. After resetting the fault it has not come back this morning.
I still have the battery on the ground. I also made a charging extension cord to charge the battery on the ground. Ill charge the battery and see if it still checks good. Ill will report back.
Is there another way to reset the F107 fault besides Toolbox3? Also I damaged one of the aluminum spacer bolts on top of the battery does anyone have a spare?