While connecting the HV battery in my 2012 Prius PHV (Plug-In Hybrid Vehicle from Japan) with my assistant, we accidentally touched our wrenches together, causing a spark that burned my finger. Despite this, I continued and connected the battery. The car turned on but wouldn't enter "READY" mode. I tested each cell, finding most at 3.54v, but two were at 0v. I’ve attached a photo showing the dead cells. A diagnostic test indicated that the voltage sensor isn't working, likely because it’s receiving no power from the dead cells. The client is understandably demanding new cells to replace the shorted ones, as the vehicle had no battery issues when it arrived—just a need for dust removal. Please advise on how to address this issue.
You are going to need the techstream documentation for that models Battery Assy HV Supply. and the part(s). Buy Genuine Toyota G951047091 (G9510-47091) Battery Assy, Hv Supply for Toyota Prius. Prices, fast shipping, photos - Amayama recommended video before attempting to continue unprotected work inside the high voltage battery case. Be safe !
I would be. Anything is possible, given the descriptive details of the problem. Prius don't usually like getting shocks.
