06 Prius red triangle

Kind of a long shot, but anytime it rains out we have to check for pools of water in the battery area as we saw a few videos on youtube about that defect on Gen 2s before purchasing one and we test drove several that had a rusty battery from the water exposure and had to pass on but were otherwise cherry cars.

Apparently it can cause that red triangle issue and erratic issues. it's supposed to rain this week in Santa Barbara and I still haven't had time to water seal the back with gasket maker stuff in the tube (it' sitting in the back seat) so we will have to park it in my covered parking spot over night this week.

I can't use links since I just joined but look on youtube for a video called: Triangle of death fixed for under a dollar. 05 Toyota Prius, hope this works for you!

 

I have heard that the ecu doesn't start to take notice until the difference is above 0.3V for awhile. Above that it's a question of how high for how long. 1.5V is crazy high. Either there's a faulty voltage sense wire or connection at the battery ecu or you have a module with a shorted cell.

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