1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Help replaced inverter cooling pump and now no power at all

Discussion in 'Gen 2 Prius Main Forum' started by Esterbrookangela2, Aug 19, 2023.

  1. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    2008 Prius So after every triangle and probably every warning lights and buzzers possible .. I finally was told to check my inverter pump so I did and replaced it got a brand new 15 amp fuse for the 2nd spot in the under the hood fuse box plugged back in my orange saftey thing for the hybrid battery and all the plugs back into my 12 volt battery and now nothing .. I do still have my headlight unplugged incase something was up with my new pump like was going to see if it leaked at the hoses and what not before I put it completely back together.. I might add before I took everything apart I checked the am2 fuse and it did click a few times but after that I then had no power to my car
     
    #1 Esterbrookangela2, Aug 19, 2023
    Last edited: Aug 19, 2023
  2. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    11,057
    4,500
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    The AM2 fuse is definitely what your symptoms are pointing at... But try charging your 12v battery or using a different 12v.
     
  3. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Okay will put the 12volt on charge … I got brand new fuses and put all new ones in the under the hood fuse box the four on the far right side that is … where the am2 fuse is .. and when I took the fuses out it sure looked awful dirty so I got an old tooth brush and lightly cleaned the port where the fuse goes in it seemed to have quite a bit of white corrosion like down in it I didn’t know what else to do . Like I said I was gentle didn’t know if I was helping or hendering…
     
  4. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    8,920
    1,553
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    You can use electrical contact cleaner in those slots in the fuse box as long as it's plastic safe It will say that on the label of the electrical contact cleaner You want the little red tube like with the WD-40 so you can shoot it down in there pretty good fashion it dries very quickly close to instantaneously there is generally room in the fuse box for the overspray to run the stuff that it blows off of the metal pieces in the fuse box further down into the fuse block where it hits the plastic and runs to a corner and just sits there and dries up usually yielding the blade spaces for the fuses clean again and ready to go there are some small very thin abrasive pieces of metal kind of like files that can go in between where the blades from the fuse go and clean that area up but usually the contact cleaner will do fine It's good to put or for me it's good to put a little dialectic grease on the blades of each fuse to help with this corrosion some people never look under there until it's well way too late when you live in an area where there's high heat and then cold and lots of heat cycling and whatnot You should look at things kind of like this to see if corrosion and funny businesses happening You know it's an old car now 15 or so and it sounds like you have way too much apart You could have left the headlight and the bumper cover all alone and just use a 14-in quarter inch drive extension 10 mm wrench take the pump off of the gold bracket leave the gold bracket in the car undo the two hoses from just the inverter pump stick them right on the new pump stick the 10 mm through the plastic pump zap it right down to the gold bracket and now all you have to do is fill up but apparently you followed the instructions and have the light out and quite the disassembly technique for sure but that's good at least you know how it works and where it goes and you certainly don't have to do that to change bulbs in your lamps unless your HID and now's the time to convert the halogen new assemblies etc the plastic part or maybe it's not a good time this is the kind disassembly you will have to do If you have HID lights and need to convert to halogen housing so remember how this worked That's a very common repair on these cars if they have HID lights those are the expensive bulbs and what not to replace if you don't change them out completely good luck.
     
  5. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Thank you that will surely help .. I sure feel like they need to be cleaned with something I just didn’t know what.. like I said earlier I had power until I checked the am2 fuse. It clicked and clicked some more like it was getting contact. And then no power whatsoever. And with brand new fuse Still nothing..

    I’m waiting on someone to bring me a battery charger so I can charge the 12 volt battery it’s pretty new so I didn’t gjunk it was an issue .. idk I’m just nuts about the whole deal ….
     
    #5 Esterbrookangela2, Aug 20, 2023
    Last edited by a moderator: Aug 21, 2023
  6. ttou68

    ttou68 Active Member

    Joined:
    Sep 9, 2017
    345
    203
    0
    Location:
    40509
    Vehicle:
    2010 Prius
    Model:
    III
    Do you have any power to the dash?
    If not, check orange hybrid battery plug, be sure it's pushed in and slide to lock

    Posted via the PriusChat mobile app.
     
  7. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    No power at all anywhere …
     
    #7 Esterbrookangela2, Aug 20, 2023
    Last edited by a moderator: Aug 21, 2023
  8. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,802
    15,453
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I'm not sure I understand the suggestion.

    If the hybrid battery service plug is not pushed in and slid to lock, you still have power to the dash, and a warning triangle, and a P0A0D diagnostic code to tell you that's the issue.
     
  9. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Okay so now I have a battery charger and a volt meter not real sure I know how to work it other than checking the 12 volt battery I did that already and it read . 80….. so that’s really low almost dead if I’m not mistaking … so do I unplug all the white plugs that’s hooked in with the battery and hook the charger up on 2 amp for a while ? I also want ex to check the fuse box to make sure it was even working. So I put the meter on Oms and put the red and black deals on each side of the fuse in the fuse box under hood where am2 fuse is and did that to all four fuses and they all came up likt10 9 like kinda went through some numbers all about the same So probably didn’t do that the right way either …
     
  10. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Can I use a regular battery charger to charge my 12volt if I unplug the three plugs and maybe unhook the terminals ? I just don’t want to screw anything up I’ve had enough problems as it is thank you for any advice it’s surely appreciated as I know nothing !!
     
  11. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,628
    3,849
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    I'm not sure what you mean by a regular 12 V battery charger, but any automotive 12 V charger will do for now. If you have the choice to use a higher amperage on that charger, use up to 5 Amps. It will charge faster than at 2 A and is safe to charge at that setting.

    There is no need to do all that disconnection, just pull the white plug with the thick cable coming out of it located at the front of the black block attached to the positive (red) terminal of the battery. Once you have done that the battery is effectively isolated from the car.

    Make sure to connect the red clamp of the charger to the positive terminal of the battery and the black clamp of the charger to the negative terminal of the battery then you can turn the charger on.

    Let us know if you have any more questions.
     
  12. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    8,920
    1,553
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Many times it's easier to use the little white tool under the fuse box cover to pull the fuse out look at the middle of the fuse and see it's not blown and the fuse looks good and you stick it back in the hole that fuse is good The AM2 was the one you really want to be fooling with for the inverter pump If there's any question about the fuse just grab one of the spares Mark spares under the hood of the fuse box on the back side see the spare area locate that right under the lid and pick one of the spare 15 amp or 10 amp fuses or whatever it is and shove it in that hole If you think the other fuse you took out is not blown hold on to it and show it to somebody and they'll tell you If it's not put it back in the spare fuse section and leave it for the next time and maybe that person showed you what a blown fuse will look like or he blew it for you and showed it to you. The 80 that you got on the I don't know what maybe the battery charger when it does that on my Schumacher battery charger it's showing me that the battery is 80% charged and in a very few minutes on the I don't even know what the six or eight amp setting it'll be up to 100 You can watch the display it will show you on the low amp setting the volts and then the percentage and then back to the volts and then back to the percentage at least that's how my Schumacher battery charger works today and it's not very old from Walmart it's a handheld unit You can walk around with goes from I don't know 125 amp start mode down to two amp trickle charge and there's a setting or two in between on the lower settings if you connect the battery charger off just connect it to the positive and negative terminals and set the charger down in the trunk and watch it the battery charger will automatically come on show the percentage then show the voltage and then automatically if it needs to you'll see the amber light come on and you'll hear the charger humming It's trying to get the battery to 100% and proper voltage at 80% you're talking 45 minutes or something and you'll be at 100% and whatever voltage it says and that's that More importantly once you get the car to ready you want to use the voltmeter on DC volts to check that with the car not ready you saw 12.3 volts 12.1 11.9 whatever but when the cars ready on those same battery terminals with the ready light on you're looking for 13.5 to 14.5 just sitting there If you don't have this you need to find out why usually the converter in the inverter is not converting the 211 volts DC to the 13.5 to 14.5 volts DC that you need to be seeing when ready It's pretty much that simple.
     
  13. mike_az_21

    mike_az_21 New Member

    Joined:
    Aug 21, 2023
    26
    3
    0
    Location:
    Arizona
    Vehicle:
    2007 Prius
    Model:
    Touring
    Not sure if I missed it - but, any power to the dash?

    I feel fairly fluent in my gen2 knowledge after tearing my down & the 1st thing I replaced was my inverter pump.
     
  14. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Thank you so much !! I have power!!! Yeah !! Now that I have power I need to get some of that red coolant which I have none. I do have some coolant that is universal it says would that be alright to use I was going to fill the reservoir then put the hose on there and open the bleeder valve and get the bubbles out. But my resevor isn’t full after changing out the inverter pump heck I’m not even sure the pump is worked by I was going to wait to turn it on and check until I get the coolant in and bled
     
  15. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    I have power!!! Now that I have power I need to check and make sure the pump is working. I have to get some more coolant bc the reservoir isn’t up to full guess I lost a little when I changed the pump .. I was going to use the clear hose on the bleeder valve and get the bubbles out and top the reservoir off with more coolant . Gotta get some though .. I do have some coolant it’s oreilys brand universal says it’s made for all makes and models and colors of antifreeze ..,
     
  16. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    11,508
    14,109
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius
    Model:
    Two
    Wow! A triple post and then a quadruple post. The forum software is cookin' now. :ROFLMAO:

    Anyway, I recommend only using the Toyota brand SLLC coolant. It for sure works, and I just don't think it's worth the risk trying to save a couple bucks with some other brand that claims to work. Just too much money involved is it doesn't work.

    Next observation is that if you have coolant in the tank, you have enough to test the pump. I wouldn't drive it very far, if at all, like that but at least you can test it. Also, if there's still coolant in the tank bleeding may not be necessary. When I change them, I typically only lose a couple tablespoons full. But if you drained it, then you'll need to burp it.

    One more thing for @Tideland Prius. If you have time, would you want to merge this thread with 12 volt battery if I unhook the thre plugs on the battery | PriusChat? Same event and same original poster. Thanks!
     
    Tideland Prius likes this.
  17. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    44,903
    16,127
    41
    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Merged and deleted duplicates
     
    jerrymildred likes this.
  18. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    So now I have the coolant do I just fill the reservoir to the full mark and then hit the power button twice to check and see if the pump is working ?and then if it is do I put that clear hose on the bleeder valve open it and get the bubbles out ?
     
  19. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,628
    3,849
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    I hope you got Toyota SLLC. While aftermarket coolant may be okay to use, it is never a good idea to mix two different coolant formulations. It could bite you in the butt down the line.
    Yes, but ...
    No need to do these two actions as separate steps. Connect the hose and then start the pump (as above). You can open the valve when you get back to the engine bay.
     
    jerrymildred likes this.
  20. Esterbrookangela2

    Esterbrookangela2 Junior Member

    Joined:
    Jul 21, 2022
    48
    5
    3
    Location:
    Oklahoma city
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Can you please tell me if this wire should be hooked to something?
     

    Attached Files: