I checked out a 13 hybrid with 93k miles last night. The seller bought it at auction, unseen, and when he got it it wouldn't run due to a dead 12v. He put a new batter in it and it ran for about 40 minutes until the battery died. It seems like the DC/DC converter system isn't working, or there's a wiring problem. The seller doesn't really know what he got himself into and just wants to get rid of it. We jumped it with his truck, and everything came on and looked good. We even got the engine to turn on by turning on the heat, and it recharged the main battery.
I'm thinking about taking another battery and hooking it up to take a test drive.
What should I look for on the test drive?
How difficult will it be to troubleshoot the low voltage charging system?
Thanks!