Precool/heat: System fault

[Toreref]

Have you seen this before, and do you know how to fix it? Cooling and heating of the car does work.

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[Dee]

First of all: provide some more info like:
-what have you done already?
-is it the first time?
-under what circumstances does this appear?
-is it persistent?
-did you search for info on this forum already?

 

[Toreref]

sorry…

I haven’t done anything else but turn the car off and on.

I don’t know how to approach this.

yes it is the first time and it doesn’t seem to go away. The error is persistent.

this message always appears when I enter the menu.

I did search both the forum and Google. I didn’t find anything related to this.

I don’t know if it is actually a fault or just buggy Software, since th pcm is full of quirks

 

[carboard123]

sorry…

I haven’t done anything else but turn the car off and on.

I don’t know how to approach this.

yes it is the first time and it doesn’t seem to go away. The error is persistent.

this message always appears when I enter the menu.

I did search both the forum and Google. I didn’t find anything related to this.

I don’t know if it is actually a fault or just buggy Software, since th pcm is full of quirks

Hi have you resolved this? I am having the same issue. I read a few other posts in this forum and several others have noted a similar message which has led to a bigger issue - a problem with cooling the battery (when the weather gets hotter) and a reduction in power and eventual turtle mode warning. Apparently a solenoid in the cooling system needs to be replaced.

 

[Toreref]

Thanks for the info. I haven’t resolved it. I’ll take it to the dealership for a fix. I’ll let you know how it goes.

 

[Toreref]

Turned out to be software related. The dealership updated the software (I don’t have any details), and now it works.
Very odd.

 

[HypeR]

my taycan gave this error about 3 months ago, when I took it to the dealer they fixed the problem.

 

[Tooney]

Took a drive tonight, outside temp 32 F/ 0 C, Only cold air blowing from cabin vents.
Got back home. I have the same message in PCM as in the original post: Precool/Heat: System Fault
When charging cable plugged in, cannot activate precool/heat function. Message is: "not available".
First time I have seen this. Will check if it persists/comes back.

 

[mmdumi]

@Tooney did your issue resolved ? Or had to schedule the car for service ?

 

[Tooney]

I took the car to dealer. Diagnosed as high voltage heater failure. The heater was replaced. More details posted in one of the many other threads here about heaters.
@featherless is tracking heating failures: https://github.com/evstatus/PorscheTaycan/issues/1

 

[Fish Fingers]

I took the car to dealer. Diagnosed as high voltage heater failure. The heater was replaced. More details posted in one of the many other threads here about heaters.
@featherless is tracking heating failures: https://github.com/evstatus/PorscheTaycan/issues/1

He's not updated it for a while now. In the meantime there have been a stack of failures posted on here.

Maybe he's away/busy?

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