I am having same code, my forklift has a led acid battery, did you happen to find a solution?
What if you are getting 168 accompanied with 105. But break coils are good on voltage and checking them under analyzer. We also have hydrogen fuel cell.
You have the lithium-ion battery
It says view the external display, turn the battery on, if you get a fault from the led flashing then troubleshoot that battery code.
Check battery state of charge, confirm the EPS harness is correctly connected
Basically it's saying a battery or connector problem.