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Trans. Fault Poss. No R gear Drive on poss.

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Old 10-30-2023, 09:17 PM
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ahhprods
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Default Trans. Fault Poss. No R gear Drive on poss.

I did a search and read the posts about this error.

I got this error on my driveway. It went away and hasn’t come back for the last 2 short trips. No codes when we hooked it up to a reader. Anyone have this error? Did it go away and come back? Did you also have no codes but then finally threw a code? Any info on your experience appreciated. I can’t take to dealer to diagnose without a code. *is the dealer’s reader better than consumer reader; could the dealer reader pull a code when we can’t? Don’t really want to pay diagnostic fee for them to hook up a reader and say they don’t see anything!

thanks!
Old 10-30-2023, 10:10 PM
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Faust T.
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how is the transmission behaving? I have a similar code they end up having to replace the whole PDK..
Old 10-30-2023, 11:16 PM
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Ironman88
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It is not uncommon for PDK error codes to present themselves if the battery is weak. I would check the health of your battery as a first step.

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ahhprods (10-31-2023)
Old 10-30-2023, 11:23 PM
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Mr. J
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Curious as others probably are....what year and model Macan? Also how many miles do you have on the vehicle?
Old 10-31-2023, 01:43 AM
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Originally Posted by Mr. J
Curious as others probably are....what year and model Macan? Also how many miles do you have on the vehicle?

2016 Macan S 68k miles

thanks!
Old 10-31-2023, 01:47 AM
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Originally Posted by Faust T.
how is the transmission behaving? I have a similar code they end up having to replace the whole PDK..
for the past few weeks, I’ve noticed the drive is kind of stuttered at low speed. Not sure how else to describe it!

Were you able to pull a fault code? If yes, what was it?

if no, how did they diagnose to know it needs a pdk replacement?

thx!
Old 10-31-2023, 09:53 AM
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A generic scan tool cannot retrieve transmission fault codes. You need a Porsche specific scan tool to do that.
With that dash message, there definitely will be fault codes stored in the transmission control module.
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Old 10-31-2023, 10:49 AM
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Originally Posted by ahhprods
for the past few weeks, I’ve noticed the drive is kind of stuttered at low speed. Not sure how else to describe it!

Were you able to pull a fault code? If yes, what was it?

if no, how did they diagnose to know it needs a pdk replacement?

thx!
Does the car have the original transfer case?

Old 10-31-2023, 12:49 PM
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A bad Transfer Case won't get that kind of warning on the dash.....
Old 10-31-2023, 01:01 PM
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Originally Posted by ahhprods
for the past few weeks, I’ve noticed the drive is kind of stuttered at low speed. Not sure how else to describe it!

Were you able to pull a fault code? If yes, what was it?

if no, how did they diagnose to know it needs a pdk replacement?

thx!
Originally Posted by VAGfan
A bad Transfer Case won't get that kind of warning on the dash.....
There may be multiple things going on with the car. The "stuttered" effect at low speed can be an indicator of a transfer case issue. Common with the model / year.
Old 10-31-2023, 01:11 PM
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Faust T.
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Originally Posted by ahhprods
for the past few weeks, I’ve noticed the drive is kind of stuttered at low speed. Not sure how else to describe it!

Were you able to pull a fault code? If yes, what was it?

if no, how did they diagnose to know it needs a pdk replacement?

thx!
mine is jerky when accelerate from a complete stop, it feel like the clutch is not properly engages,
down shift from 2nd to 1st is unusually rough too, less so when it's in sport mode.
It threw a similar message and went away after the car had been sitting for 2 hours and never come back,
brought it to the dealer 3 weeks after and they are able to pull the code stored in the TCU,
my SA believed it's the mechatronics that failed, but since the car is under warranty, Porsche wants to take a look at it too,
they send a tech and pull the fluid sample and found debris in it, the tech from Porsche believe it had cause enough damage to required a whole PDK replacement.
mine is 6 years, 65k miles when that happens, good luck to you.


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Old 11-01-2023, 04:55 AM
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Originally Posted by Ironman88
Does the car have the original transfer case?
I had that recall done last year.
Old 11-01-2023, 04:56 AM
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Originally Posted by Ironman88
There may be multiple things going on with the car. The "stuttered" effect at low speed can be an indicator of a transfer case issue. Common with the model / year.
Had that recall done last year.
Old 11-01-2023, 05:02 AM
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Originally Posted by Faust T.
mine is jerky when accelerate from a complete stop, it feel like the clutch is not properly engages,
down shift from 2nd to 1st is unusually rough too, less so when it's in sport mode.
It threw a similar message and went away after the car had been sitting for 2 hours and never come back,
brought it to the dealer 3 weeks after and they are able to pull the code stored in the TCU,
my SA believed it's the mechatronics that failed, but since the car is under warranty, Porsche wants to take a look at it too,
they send a tech and pull the fluid sample and found debris in it, the tech from Porsche believe it had cause enough damage to required a whole PDK replacement.
mine is 6 years, 65k miles when that happens, good luck to you.

almost same age and miles as mine! Still under porsche warranty? Wow! So glad they covered it for you.

I have a fidelity extended warranty so they would cover it as well. I had the pdk service done at 40k mile major service. But that was 2018, so maybe same issue as you!

Thanks for the info, very helpful.
Old 11-02-2023, 05:30 AM
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Originally Posted by Ironman88
It is not uncommon for PDK error codes to present themselves if the battery is weak. I would check the health of your battery as a first step.
The battery is about 1/2 cca (408). No issues starting. Would this cause the Transm. Fault?


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