Red triangle of death: P3000 and P0A84

Hi all!

Back again with my other Prius. I was driving home from work the other day (20+ miles, highway driving) and was a couple of blocks from my house when the red triangle of death appeared, in addition to the VSC and warning light.

I've pulled the codes using an Autel MaxiAP200 and found:

P3000 (detail code 123)
P0A84

I've attached the freeze frame data for each.

From my basic knowledge, seems like a problem with the HV fan (and that in turn throws a P3000 as a "something is wrong, help").

We had quite a bit of rain here in the past couple of weeks. Our other Prius had a decent amount of water in the 12V battery compartment (and this Prius has had water in there before). I cleaned and sealed the cracks in around the hatch in both after finding the water in the other Prius. Then a few days later, the code appears in this Prius.

I'm thinking corrosion in the HV battery fan connector? I can't see anything else from the freeze frame data.

So should I pull apart the rear and check the fan? Anywhere else I should be looking other than the connectors?

Thanks!

 

Double checked with hybrid assistant that the fan was not turning on. Pulled apart the rear to get a look at the fan. Fan looks okay, if a little dust filled.

Lots of corrosion on the fan connectors (see attached). Off to buy some butt connectors and heat shrink to bypass the connector.

 

Update! All codes gone and fan is running again.

Bypassed the connector with some heat shrinked butt connectors. Didn't have a heat gun so tried to use a lighter to warm the heat shrink - this was a little dicey. Did an okay job, so also wrapped them all in some electrical tape in both directions.

When putting it all back together, I snuck the wires above one of the plastic push connectors on the interior panelling. This seems like like it will keep it out of the way of where the water was dripping down, and it won't rub against any metal.