Red triangle but good mpg

Given the amount of corrosion and lack of any visual evidence of leaking, could it be a short in the wires that connect to the relay? I'm just thinking out loud and doing some cursory searches on YouTube to find out more.

Thanks

 

No nothing shows up in the freeze frame and I've still not received a response from their support. I'm just probably found to end up returning the Autel honestly. If someone did not post the build 8 file here I wouldn't even have been able to run a full scan bc of it.

I think I'm going to get a new wire harness and bus bars and hopefully that will fix the issue. There was evidence that the corrosion got on to the harness. By the looks of the fan no one has ever been in there to service anything including that disgusting fan.
I'm definitely a convert since picking up this prius on Craigslist. Love the mpg. Can't wait to do the suspension work on it to make it a great daily car.

Thanks again to everyone for their input I greatly appreciate it

 

I would like to do stuff like this. I've heard great things about prius off road and look forward to getting some of their products. Just trying to get the battery situation resolved

 

So can someone tell me which harnesses that I should be looking at or how many there are?

I've found listings on ebay that have just the wires and those that look like that have wires and the plastic bus bar piece.

I'm not trying to throw parts at it but is there a way to know if the harness is the problem? Again I've found evidence of corrosion reaching parts of the harness but would be nice if I could somehow substantiate that.


This looks like the entire kit is that right? Looks like it has the temp sensors too idk if I need that

PRIUS 04 - 09 HV BATTERY WIRE HARNESS G9240 47020 A | eBay

This is just the long plastic bus bar holder with the wires already together

04-09 PRIUS BATTERY WIRE FRAME NO.2 82165-47040 GENUINE TOYOTA | eBay

This is the cheapest option I see. It's just the wires no long plastic piece. I imagine it would be a little more work to put this into my existing plastic piece but it is worth it?

Hybrid Battery Harness, Compatible with Toyota PRIUS Gen II (2004-2009) | eBay

Attached is also a diagram from one of the listings

Are the harnesses the same for both the rear facing vs the front face of the battery? Most of the corrosion is on the rear facing side of the battery so I'm thinking of starting there.


Could the problem just be the corrosion on the bus bars? I plan on changing those anyway while I'm in there but could that be causing the isolation fault?
Your input is greatly appreciated!