Plug-in Charging System Malfunction message

If it's like my Gen4, the seat where the fan is pulls right off. Maybe put a 120V fan blowing where the fan is as a temporary solution so you can charge? It's kinda redneck engineering but if it can allow you to charge, why not...

 

That's the fan for the battery.
Sounds like the gen5 Prime is like the Rav4 Prime, the battery charger has its own separate fan.

 

No, my gen4 Prime battery fans (two of them) are within the rear fender, near the rear of the car. The fan under the rear passenger seat is for the charger.

I know because I had to remove the lining on both sides of the trunk to access the wiring harness to install my trailer harness. The fans were right there.

 

it shows the cooling fans and ducking of traction battery on gen 4 prime and talks about the charger
around 13.48 for the fans and 10.46 for the charger

 

Ah, I thought you were referring to the vents on the bottom of the rear seat for the battery.

The gen4 charger is under the rear seat. I believe the gen5 moved it to the cargo area. Getting to it, or the fan, may not be as simple.

 

Thanks for the link to the video. That brings a question, he mentioned that there is a battery heater to warm up the battery when the temperature is below 2C. How does that affect the charging time during winter? I'm assuming the 120V charger will be more affected than the 240V one here since a higher percentage of the power will go towards the heater.

It's also nice to see the 12V battery is being charged while the high voltage battery is being charged. I was under the impression from previous discussions that the 12V battery would only getting charged while in Ready mode.

Edit: Following the next video

It shows the heater grabs about 200W so that's about 14% of the 120V outlet power going to the heater, therefore it doesn't affect the charging that much, unless the battery are cold which means it has to warm them up first. Better charge as you get home and the battery are already warm if you're not hit with a premium price for onpeak power usage then.

 

@sylvaing another effect is that leaving the car plugged in after the charging process is done, if the battery heater has been turn on in the menu, when a polar coldsnap happens , the battery heater will turn on and the charger will activate the dc to dc converter to keep the 12v battery happy since the heater operates on 12V power.....you will see the charge light come on on the EVSE and hear the inverter buzzing under the hood while heating the traction battery

 

Wait, so if I let the car plugged in in winter and it's below freezing, it will keep the battery warm?

 

yep ,go read the battery warming, for canadian and alaska models in your manual , its not clearly written but with the info of the video, i did test it last winter and I could see the brick turning on after a sub minus 30C night.
you must activate the heater in the menu to enable the function

 

For any of you 2023 owners in this thread who encountered this error, I added an update to the gen 5 thread.

Your plug-in system has malfunctioned | Page 3 | PriusChat

TSB applies to 2023 only. Not sure about previous years.

 

This is amazing that Toyota let this slip through.But guess you can't catch everything, though I am sure customers don't enjoy being beta testers of newest stuff.
Off topic: Reminds me of a model train forum I am on where a big box store is dipping its toe into model trains. It has been beta testing a locomotive with customers buying ($200+ a pop) then evaluating good bad ugly.. I think they are up to beta version 5 now, but I have not bought any. Will wait until real deal comes along.

 

Update: so my car is do in the shop in 2 days. I stopped in to pick up some parts for a different Prius and mentioned the TSB. They seem to have no knowledge of it and when they looked it up confirmed that it's the same error code that my car threw but they were planning on doing different work. They asked me to still drop my car off and they would figure it out then

 

Keep in mind, this TSB is for 2023 ONLY. A couple of 2023 owners had posted here in this thread so...

As long as the 2 conditions are met (MIL is ON and P1CE996 error code is thrown), they should be following the TSB and its repair procedure. If the error code is different then it's something else.

 

Correct. And mine is a 2023. And as I predicted they had me drop the car off and then 3 hours later told me to come get it because the part they ordered was not correct and it would be another 2 to 3 weeks.

 

Correct. And mine is a 2023. And as I predicted they had me drop the car off and then 3 hours later told me to come get it because the part they ordered was not correct and it would be another 2 to 3 weeks.

 

Correct. And mine is a 2023. And as I predicted they had me drop the car off and then 3 hours later told me to come get it because The part they ordered was

 

Correct. And mine is a 2023. And as I predicted they had me drop the car off and then 3 hours later told me to come get it because The part they ordered was

 

they don't mind wasting your time

 

duplicate, site is acting up again

 

Same on my new car. The message goes off on its own after a while. It clearly is related to heat. I suspect that it has to do with the supplemental cooling from the heat pump that may not function as intended. It is supposed to support the fan when the battery gets too hot.

I observed that in hot conditions the charging gets suspended or slowed which results in much extended charging times way beyond the usual times and can trigger the error message, especially when the cable gets disconnected during the suspension period.

I believe one can prevent the message when unplugging the cable upstream and not at the vehicle. That triggers a disrupted power supply message that disappears on start up.

 

There is a class action against Hyundai/Kia for something similar in their Ioniq5/Ioniq6/EV6. I wonder if the same will happen here.

 

How's the Regen during winter when the battery is cold? On Telsa, you get none until the battery has warmed up (usually around 10-15 minutes of city driving) if you haven't preconditioned in advance.

 

Kinda hard to say , i noticed when the battery is cold , the ICE kiks in more often to supplement energy demands letting the battery warm up in hybrid mode even if the EV mode is chosen.Regen sems to work ok when the battery pack temp is over 2degC....so I leave the car plugged in and permit the battery heater to work