Prius with a few codes: need advice

That looks like a whole harness to me but, I can't see where it hooks on at the other end. I'm nearly 100% positive you won't be able to buy just the part that's broke.

 

Just use some scotch tape, or metallic duct tape and you'll be fine......................

JUST KIDDING. Do not do that!

You will not be able to buy that as a separate Toyota part. Get a harness from a recycler like adopt-APart that specializes in hybrids. Or you could check with anyone who sells used battery slices. Maybe they have an old harness sitting around they would sell you?

 

For anyone considering rebuilding a Prius battery, there is a part number for a rebuilding kit that includes shiny brand new busbar assemblies including the sense harness as well as some insulating resin sheets for the ends of the battery stack that were an addition to the original design. The part number can be found in the original battery re-sealing campaign PDF, which is kicking around on this forum in several places. I bought a kit a few years ago just in case I might need to open up the battery; it wasn't very expensive.

I'm sure it's more money than parts from a salvage yard, but I'd guess that any busbars from a yard are going to show some degree of corrosion.

-Chap

Edit: of course there are also the improved, nickel-plate busbars from ReInVolt; I don't know whether they offer those for sale a la carte.

 

What is 3006 again, is that the code that just basically states there is too great of a voltage diff between modules?

 

Probably not a bad pack but maybe just an unbalanced pack. I would continue to work w/ Reinvolt. They have a great reputation for standing by their product.

 

Well, IMO, it doesn't necessarily mean replace but "balance" the pack (but that's just my opinion).

 

I'm no expert but I believe that's true. You know I gave this advice in a prior post but others disagree with it. You can run it by ReInvolt or do what you want with it. I personally can't see it causing any harm either way. Here it is.

Here's what I would at least try if this were me (no guarantees but it makes logical sense and its easy to do).​

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Drive the car on a flat surface below 42mph and hold in EV mode for as long as possible (trying to run the HV battery down as low as possible) The idea is to get it into the purple bars. Run it until the ECU's automatically fire up the ICE to begin recharging the battery (this doesn't have to be done while driving, you could also do it by simply turning it on and letting it sit. The main focus is to drain the hv battery as low as the ECU's will let you). Then, drive it to a long downhill stretch and coast down the hill in drive (attempting to get the battery to 8 bars). If after this, you have codes, clear them. Drive the car and see what happens.​

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The idea behind this is to attempt to balance the pack using the cars charging system. I might even do this 2 or 3 times. I would give this about a 10% chance of helping you.​

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Read more: http://priuschat.com/threads/hv-battery-problem.124072/page-2#ixzz2QwStmBoQ​

Of course you don't have bars in a Gen I but, you get the idea. Like I said, the chances of this fixing your problem are small but, without taking the battery apart and balancing modules, its all I can think of.

B4 doing this, please be sure to run it by ReInvolt. Although I don't see how it could hurt your pack, I wouldn't want to be responsible for giving you the advice that voided your warranty.

 

I guess there's a chance it could be the sensing wires but I believe those are part of the ReInvolt pack (I've never bought one but, I'm pretty sure that would be a part of it).

Either way, you don't want to void your warranty with Reinvolt. How does the car drive? I'm guessing it drives just fine.

 

Yes, thats my understanding but as I said, I'm no expert. Logically, its the battery ECU which monitors battery voltages (that's how you get the unusually different levels DTC aka p3006).

That's too bad about the service. I've never dealt with them. I hope (and suspect) they will make it all right for you.

Does the car drive well?

 

Its hard when we pay hundreds of dollars for something and it doesn't work like we want it to. I know your pain. I paid for a PHEV kit from PIS that I never got (long story) and only got half my money back. Whenever I see good things about them posted here, I just roll my eyes.

 

And that's what I would expect from a 3006 fault with a new pack. And it should continue to drive fine for a long time. IMO, 3006 is a minor fault but it is irritating to have the CEL and Hybrid lights up all the time.

Work with them and you might try contacting Bob Wilson. He appears to have a great relationship with ReInvolt.