I am a new 2002 prius owner, just bought less than a month ago. It has 135000 miles on it and less than a week after I bought it warning lights came on: Picture of a battery, ps, and car (!). I have gotten a new 12v, and a new inverter pump by the recommendation of the dealer. Turns out they decided that I needed a new hybrid battery for 2600 after the pump didn't solve the problem. Here is my issue: I don't trust them anymore because 2 service technicians tried to scare me purely about corrosion on the battery! The other day, my car didn't shut off but wouldn't accelerate when I was going 45 mph on the road. I pulled over and stopped and it restarted but I know there is a problem. I have tried to get more information from them since then and they don't call me back. The codes they pulled were p3000 and p3009. I went to someone who repairs prius battery but had never worked on a gen 1. Since most things in the main battery are fairly similiar in newer models though greatly simplified, it looked familiar to him for the most part. He tested all the cells and they were all sufficient voltage. However, the harness inside the battery box was partially burnt. He said I would need to find that part. I found one in California but when I called back to order it and asked if the guy had any guarantee it worked, he made me uncomfortable but I was still going to give it a shot. He asked if he could call back and never did and I have not been able to get ahold of him. He told me that the harness was burnt for a reason and there were prob some exploded cells that would still test and look fine from the front and show a problem only from the sides. Help!!! I have aldready invested near 6000 into this car in less than a month. I can't afford a new batt at 2600 and cant find anyone to trust period since the dealership has been so rude! As far as I know there has not been a lead to solve the problem since I heard the ECU wouldn't even be repalaced with a new battery.