for code 42 check the LPC contactor with test 002, also check for burnt tips on the contactor and check your BSOC settings on the config menu, we usually keep our BSOC at 75% and our C/O Lift at 30%. If your batteries are relatively new then 30% will be fine. If they are older than 5 years then go soemthing like 45%. Keep in mind that running batteries at lower percentages will burn your contactor tips on the long run.

For the 4C that is the the steer contactor, test I14 to check the steering fuse, and run test O01 to toggle the STR Contactor.

Check your battery first.