Reverse Polarity Jump Start - Gen3 Prius wont Start

There's no convenient black negative terminal under the hood, as far as I know. Connect the black lead from the donor battery to a substantial bare metal part.

 

3G has ground wires connected to the inverter housing, so that would be a suitable point.

2G has the strut mount bolts behind the main relay/fuse box next to the inverter, and the one facing forward is a convenient grounding point.

 

So I did this too, checked twice, wondered why it looked wrong, then hooked it up anyway and the fire works and horn and lights on ensued.. I am having trouble accessing the right screw, I purchased a fuse box from a wrecking yard, the fuse box was perfect, (I knew i was going to need fuses and relays and practice pulling the box apart)

I got the donor box open but the right bolt is unassesable. Sergey, does the fuse holder area break apart so you can pull part of it lower? here is a pic of the screw i cannot reach. and I don't know how this would come out if i was able to unbolt it. I know i could cut it out, but It wouldnt do me any good if i couldnt then access the one inside, I am looking for advice on how to pull this box apart more so the "fusable link" can be pulled out and then how to insert into my cars box.

 

more pics from top and underneath. the black casing seems to completely cover any current access point. this is the donor, but, i have to figure out how to get it into my fuse box.

 

RESOVLED,
there are 5 clips on the inside of the box that allow the center section to lower.
and a pic of the fuse.

 

Hello,
Great information, I hope to try this myself this weekend. Do you have the part number for fuse?

 

I don't have it, I thought i did more damage than just the one fuse, so i purchased the whole box from a wrecked one on ebay. I think its one you have to purchase from the dealer too, I looked online, and the I couldn't find it in online dealer sales.

 

Thanks for the pics. Besides hitting these 5 clips what is the rest of the procedure to free the fusebox in the car? I'm confused what you mean by "allow the center section to lower".

Do I remove all cables first, then hit these clips, and just pull the section straight up?

 

I got the part number of the 125A fuse from the dealer this morning, it's 90982-08297

I'm still struggling to get access to it to do the actual replacement. I'll upload a video. Maybe someone can point out a clip I'm missing.

 

Here's my video of me wrestling with getting at this fuse:

 

Good Day, i think i have your same problem, could you tell me how you resolved your problem

 

A while back I added arrows to this diagram to show where the five clips are.

 

Hi first sorry for my English.
I am having same problem with my prius plus 2013 ,just few days back drop off my car at gerage for body work then repair guy called me said that car did not start he tried with junp start ,
I have replaced my new 12v battery when tried to start power on button stay orenge when try to force start the dash lights come up and ready sign there,
1) checked all blade fuses under hood and in passenger compartment all OK,
2) Tail lights,break lights,numberplate lights,fog lights,windows des not work ,
3) I have checked the voltage all fuses with multimeter all blade fuses voltage between 10.5 and 10.8 recorded

 

.
Hi ,
I am having same problem ,
1) Head lights,turn lights OK
2) force start Ready sign apper and car start but all other sign remain,
3) checked voltage all blade fuse under hood recorded voltage between 10 to 10.50
4) All fuse continuity check OK

Please i need help i don`t know if it is 125 a DC/DC fuse or relay ,
sorry for my English

thanks and hope to get reply soon

 

The 125 amp fuse is very difficult to access, but there are easy test points you can reach with a meter probe from the top. If voltage is there with the car off (or if there is continuity from there to the jump point) the fuse is ok. Stick a meter probe down into the square opening with the green arrow here, or (even easier), touch it to the green-indicated test points on any of those three fuses directly above it. (Isn't it handy these blade fuses have test points on top?)