Darn, I swapped ou the battery like 6 weeks ago and now all the lights are on again=(

Used code reader, and no error codes stores so reset check engine, and nothing for 65 miles =)

All the usual lights came on again. The triangle, engine, brake light(dsc), and the "(!)" looking one. I wonder if the battery can go out that fast again. It came out of an 08 with 64k miles on it. I'll go down to the guys house who replaced it and he can check the engine codes and see.

 

Ok now the dsc light and (!)light turned off, so it's just the triangle and check engine light. The message on the screen just says "problem" when the car starts up. So maybe not the hybrid battery. Time to invest in a check engine code reader.

 

When I bought the car it had all 4 lights on, so I got a good deal and had someone change the traction battery, it's the big battery, not the little one. So all lights went out and it drove fine. Now it is just the two lights and my gas mileage is 32.8mpg, so a dramatic reduction from yesterday. When I look at the realtime mpg meter I can tell it isn't getting the same it did before. Traction battery is charging just fine, engine shuts off at light. I think the engine runs a lil longer that it did before. I'll have to check since I bought it used so I don't think the inverter coolant pump was replaced. I think there is that test to watch it while engine is running and see the coolant move like it should right?

 

This was done at 178k miles and I have 195k miles now "30K 04/NEWER DEALER, CABIN AIR
FILTER, SUBLET-RENTAL CAR,
SUBLET-RENTAL CAR, PRIUS HV
WATER PUMP"

Is prius hv water pump the coolant pump?
Ok I searched and found that it is. There was a recall so maybe that's why it was replaced. I should still check it. Could this cause reduced miles per gallon?

 

When I did the battery check with the screen it seemed to show it was fine. I did it a couple months ago. But the mileage really did drop by over 10mpg, so there must be something causing the engine to run longer, I think. I wouldn't think the engine itself is running so bad that suddenly its getting bad mpg.

 

It was middle of a trip. I was putting up my real estate signs so I only drove about 3miles then did a couple stops where I left the car running then all the lights came on as I was driving like 20 mph in a neighborhood street. I'll look up the test procedure again. Thank you

 

So I did the battery check procedure. Car showed 12.3v, then when accessories turned on it showed 12.0, and would goto 11.9 and back to 12.0, but never dropped. If I turned on the headlights it hit 11.1, but the procedure didn't ask for headlights. Then I turned the car on and it stayed at 13.9v. Battery seems to be fine.
I also did check the coolant pump and could see it is flowing fine.

 

Interesting, so I got the code reader and plugged it in. Car had red triangle and check engine light. It said there were no error codes, so pressed erase or reset or something and check engine light went off. I drove back to my dad's about a mile and nothing came on. Then I drove home 60 miles and nothing came on. It wasn't behaving the way it did when it had a hv battery code so maybe it was some other intermittent problem or like a wire did have to reseat. I think I was driving in a neighborhood with speed bumps when the lights came on. So far so good. $6500 for an 05 with nav, bluetooth, smart key, and jbl still doesn't sound bad to me. But yeah, if I have to spend tons for repairs, but so far I haven't had to.

What i've learned is learn how to do it yourself. The few times I used a mechanic I was ripped off. Now I do my own brakes, oil changes, spark plugs, strereo installs etc. Even when I had my A4 and SLK I just got the OBDII tool that connected to my laptop to find the bad sensor and replace it. With a Prius i'm sure there will be a time for it, but so far it's proven to be a reliable car.