1. cnc97

    cnc97 Senior Member

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    The date codes and serial numbers on them is how to tell. The cell design is common to all Gen 1/2/3/ some 4 Prius, Camry, and even the Silverado/Sierra/Tahoe/Escalade hybrid models.
     
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  2. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Oh ok
     
  3. ChapmanF

    ChapmanF Senior Member

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    Modules changed between Gen 1 and Gen 2. Gen 2 are a smidge longer. Gen 1 batteries can be rebuilt with Gen 2 or later modules, if you're careful how you fit the cover back on. The sides of the modules were revised to change heat dissipation. The design of the terminals is a bit different, and I think the later modules only have the threaded insert for the hold-down screw at one end, not both as in Gen 1.
     
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  4. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Make sense I’ll be back tomorrow once Toyota gives me another update on my car
     
  5. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    They texted me they are working on the battery. Now pickup is 12:30 they need extra time for a oil change and to look at the tire C2123
     
    #45 2011GeorgePrius, Jan 11, 2021
    Last edited: Jan 11, 2021
  6. rjparker

    rjparker Senior Member

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    Sounds like it is under control. I know Toyota won't warranty a battery that was modified by a third party.
     
  7. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Just pickup it up 2 hours ago and it drove fine until about 15 minutes ago. I got this warning light.
     

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  8. Mendel Leisk

    Mendel Leisk Sunday driver DIY’r

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    This is the main reason I’d pay the extra for the dealership to install; hopefully it’s something battery related, not ECU or other, extraneous to the install. Plus Toyota gives more warranty if they install. And no core charge? And you don’t dirty (or cut up) your hands, break your back.
     
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  9. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Ok I hade the code c1259 C1310 dealer quickly changed regenerative breaking at zero charge and car runs good. I guess Battery was overcharged bc of bad regenerative braking
     
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  10. ChapmanF

    ChapmanF Senior Member

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    Those two codes from the brake ECU only mean that it was notified of some other code or codes in the power management control ECU. The dealer apparently hasn't told you what the code(s) over there was/were, and their 'explanation' is technobabble, but as long as they found whatever it really was and fixed it, all's well that ends well.
     
  11. rjparker

    rjparker Senior Member

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    Toyota is taking care of you this time. I have heard of new batteries initially overcharging in old hybrids. My guess is an ecu is using some Proportional Integral Derivative (PID) logic and it has to relearn.
     
  12. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Well my Prius is still working just took it out to chick fila for dinner still works like a charm. They scan the car twice and only found c1310 C1259 just replaced brake ecu no extra fee
     
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  13. rjparker

    rjparker Senior Member

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    That brake ecu is as much as a new battery. Get a new inverter on Toyota and you will have won a trifecta.
     
  14. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    Battery looks good my inverter is good only bc there was no codes for it. Battery brake ecu when I took it back was bad car is working so far. It was free only took half an hour to fix when I got there.
     

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  15. 2011GeorgePrius

    2011GeorgePrius Junior Member

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    I bought Actron CP9690 at Napa auto this morning.
     
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