Lots of warning lights after 3-5 hours driving

I have enough client work - checking MCC bus bars, industrial transformers, utility transformers, etc - that its a straight forward depreciation for me

This one will make you drool

ThermaCAM® P45HSV - FLIR Systems

Ok, wipe that drool off your chin ...

 

Your welcome.

The 3 codes of: Inverter cooling/Gen temp/HV Batt Malfunction all point to an overheating Inverter. When the Inverter output starts to fail it will probably throw the 2 NO Com to ECM/Batt Energy CM.
I don't believe any malfunction of any module will throw those first 3 ominous particular codes.

Have you owned this car from new? I wonder if you might have air in the Inverter Cooling system? BTW, where do you live?

 

Ohh, that is nice. Tell me the truth: I bet you have that strapped to the top of your Remington 700.

Tom

 

As an owner of an 06, I'm curious about the odds of having the inverter coolant pump fail. Does anyone know what percentage of Priuses have this problem?

 

Well, no, I don't

:evil:

But you certainly have now given me the idea. Thanks!

Where the hell is the nearest clock tower??

 

I would NOT drive around until the pump arrives! You're putting unnecessary stress on the inverter, which is a +$4,000 touch if it fries itself

 

Jay

Not sure if we have the stats for that. However, there is no doubt that as the 2G fleet ages, we will see more failures. Any hint of a failure, that pump is out of there

the "other" Jay

 

Too bulky for the top of the Remington. Suggest one of these:

Weapon Sights - Sniper Scopes - Rifle Scopes - Morovision Night Vision

Kinda' expensive, though.....

PS - I can't actually see this from work - it's a "no-no" site for our web proxy software.....

 

Nice, and far cheaper than my FLIR thermography system.

If you're involved in that sort of work, a decent FLIR for performing client thermography of MCC's, bus bars, utility transformers, etc, will easily cost $14,000 and up

 

So, what is Patrick's prize for being the first one with the right answer? Does he get a PriusChat t-shirt or something? Kudos all the same...

 

I agree that it would not be wise to drive the car any distance while in this condition. It would be better to arrange a loaner if you can. Otherwise, at the first sign of overheating, please stop.

Thanks for your comment; I won two Prius Genius T-shirts, one at PCD (very heavy competition there) and the other at PC LA, so its all good.

 

I won a tee for being the most sinister PriusChat member ...

 

I had to have my inverter coolant pump replaced this past weekend.
I was on I-5 when the Red Triangle, yellow VSC and another yellow trouble light came on. The MFD displayed "Problem" and I heard a long beep.
Since everything else seemed fine (engine ran smoothly, battery charged normally) I drove to the next exit which happened to be a rest stop. I turned the ignition off and on a few times and the VSC light went out, but the Red Triangle and MFD "Problem" stayed. There was also a brown car with an exclamation point in it (Hybrid System trouble).
I called my dealership and described what happened, and the technician said if it was him, he would drive it to the nearest dealership. He also said that if the steady lights start blinking, I should pull over and call for a tow.
I drove to my dealership, ~30 miles away, at about 62mph. They pulled DTC P0A93 (Inverter Coolant Pump) and said the pump was no longer working. My water pump had been seeping for a month or so, so they said I needed both pumps replaced, as well as a new serpentine belt. All the parts were in stock and the total bill was $1,066. My extended warranty expired 15,000 miles ago so it wasn't a freebee for me. I checked the paperwork and verified that I got the "new and improved" pump.
I was hoping not to have any major repairs until at least 200,000 miles (haha)! Oh well. Now I'm hoping for no more problems until at least 250,000 miles on the odometer.
As my wife said, "Any breakdown you can drive away from is a good one" (although I realize to took a chance by driving it so far after the lights came on).:doh:

 

Last summer we saw many posts regarding failed inverter coolant pumps. Now we are seeing these failures being reported before spring has sprung and the weather has heated up. I think it would be good preventive maintenance to replace this pump at 100K miles if not sooner.

 

Patrick, it sure does appear so ...

 

Interesting. After you get your car back, a few questions for your consideration:

- Does your service invoice for the body ECU replacement show what DTC had been logged? Normally that ECU remains in the background and is not the cause of the type of trouble that you reported.

- At this point, have you had both the engine coolant heat recovery pump and the inverter coolant pump replaced?

- Do you notice any change regarding turbulence in the inverter coolant reservoir now?

- Can you at least hear the inverter pump running? Make the car IG-ON (where all instrument panel lights are on, not READY) and place your ear near the driver's side headlamp. You may be able to hear the pump, and should not hear any air bubbles.

 

hmm. this makes about as much sense as replacing a coolant pump for something that doesn't sound much like an overheat condition. i guess we'll see what happens.