2024/07/21

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog

 2022 and before Tesla uses lead-acid batteries, 2022-2024 Tesla (Model 3/Model Y) uses 16V lithium batteries. Here is the instruction to repair the Tesla 16V battery if the vehicle battery fails or collides.

 

First of all, test the battery with a multimeter.

Remove the battery from car.

Test the battery, there is 12V voltage but no current.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 1

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 2

Remove 4 screws and open battery module.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 3

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 4

Unplug this connector

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 5

Locate eeprom chip (MM9Z1J638). The chip data is corrupted, remove it and flash data into the chip.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 6

Xhorse VVDI Prog V5.2.4 software adds a Telsa battery(MM9Z1J638) option. We are going to read Pflash and EEPROM data with vvdiprog.

Check wiring diagram in vvdi prog.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 7

Connect vvdi prog with battery module following the wiring diagram.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 8

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 9

In vvdiprog software, select 8-Other->Tesla-> Tesla battery (MM9Z1J638)

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 10

Read and backup eeprom and FLASH

Write the new data to the battery module.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 11

NOTE:

You cannot install the battery module back to car directly after reflashing the 16V battery. You have to charge battery to 16V to activate it.

How to activate Tesla 16V battery?

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 12

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 13

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 14

Charge the voltage to 16V.

Then test voltage.

Repair Tesla 16V Lithium Battery with Xhorse VVDI Prog 15

After that, install battery module back to car.

 

www.obdii365.com

No comments:

Post a Comment