2025-05-15

MV Battery - Recover (Restore)

Correction code 17010008 FRT 0.06 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email ServiceManualFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure. NOTE: See Ergonomic Precautions for safe and healthy working practices.

  • 2025-05-15: Fully revised procedure.

LV Battery Recover

Informational PurposesAn informational icon, calling your attention
Note
The MV battery won't recover unless the HV system is healthy and supporting the vehicle. Make sure that the HV system is functioning correctly before attempting to recover the MV battery.
  1. Enable Service Mode. See Service Mode.
  2. Make sure that no external power source is connected to the jump post.
  3. Make sure that the high voltage system is supporting the mid voltage system. On the touchscreen, touch Service Mode > Mid Voltage > Power Distribution and make sure that the PCS Packside DCDC Support Status indicates Active.
  4. Make sure that the MV battery is properly connected. On the touchscreen, touch Service Mode > Mid Voltage > Power Distribution and make sure that the Li-ion MV Battery ECPA (Electrical Connector Position Assurance) status indicates Closed.
  5. Confirm that the Li-ion LV battery MOSFET status is Closed. On the touchscreen, touch Service Mode > Mid Voltage > Power Distribution and make sure that the Li-ion MV Battery MOSFET status indicates Closed (Green).
    Figure 1. Li-ion MV Battery MOSFET status Closed
  6. If the MOSFET status is Open (Orange), the MV battery has not auto-recovered and alert VCLEFT_a478_LVBMS_MOSFET will be present. To attempt the MOSFET to close, Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes):PROC_VCLEFT_X_RECONNECT-MV-BATTERYvia Toolbox: (link)via Service Mode: Mid Voltage ➜ Power Distribution ➜ Close MOSFET
    Figure 2. Li-ion MV Battery MOSFET status Open
  7. If the previous step does not successfully recover the battery, proceed with using a compatible Tesla Li-ion battery charger to recover the LV battery, and then repeat this procedure.
  8. Exit Service Mode. See Service Mode.