u/groovyipo

Did all the steps to diagnose, and looks like my onboard charging module (OCB) is dead. Researched a bit and given my car is 2018, even with 8yr battery warranty running out in September, there is a very high failure rate of getting warranty to cover OCB replacement. Dealers around me here in Boston are bonkers with their shop rates. So I am thinking about either replacing it myself or going to an independent shop. Has anyone done the OCB replacement here, or is this something I have to go to the shop for?