Demo 992 Over 50 Faults
Thread Starter
7th Gear
Joined: Jun 2021
Posts: 7
Likes: 1
Demo 992 Over 50 Faults
Hey guys, been a long time lurker on the forum but I just picked up my demo 992 a week ago with about 1300 miles. The second day after driving it, I got 8 random faults and a check engine light, here are some of the errors:
I sent it to a local (not selling) dealer a week ago since it's under warranty and they don't have any updates yet besides "looking into over 50 faults stored on the computer".
Any idea what's going on or what to do?
- PAS restricted
- Transmission error, reverse gear not available (and couldn't reverse)
- Engine control error
- Chassis system error
- Rear differential lock error
- PDCC function not available
- Sport exhaust function not available
- RAS error
- Check engine light
I sent it to a local (not selling) dealer a week ago since it's under warranty and they don't have any updates yet besides "looking into over 50 faults stored on the computer".
Any idea what's going on or what to do?
Rennlist Member
Joined: Jul 2020
Posts: 672
Likes: 386
From: San Francisco
Wow, sorry to hear that. Some of us have experienced very intermittent warnings that go away after restarted. I've personally seen two "unavailable" warnings and don't even remember what they were... Maybe ACC or something else. But these have been very rare during my 10 months of ownership.
Your 992 sounds like it is way beyond the norm. Is at the dealership being looked at? That seems to be what's needed if they don't go away after some normal driving.
Your 992 sounds like it is way beyond the norm. Is at the dealership being looked at? That seems to be what's needed if they don't go away after some normal driving.
Thread Starter
7th Gear
Joined: Jun 2021
Posts: 7
Likes: 1
Appreciate the insight, yes it's at McKenna Porsche being looked at, but it's been a week so far and they have no substantial update - sounds like they're really backed up and I couldn't even get a Porsche loaner 
Just been a disappointing experience so far, this is my first Porsche and was looking forward it.
Seems weird how there's so many faults that are seemingly unrelated, I'm assuming there's not something actually wrong with every one of those things.
Just been a disappointing experience so far, this is my first Porsche and was looking forward it.
Seems weird how there's so many faults that are seemingly unrelated, I'm assuming there's not something actually wrong with every one of those things.
Instructor
Joined: Sep 2019
Posts: 200
Likes: 54
From: SF Bay Area, CA
Hey guys, been a long time lurker on the forum but I just picked up my demo 992 a week ago with about 1300 miles. The second day after driving it, I got 8 random faults and a check engine light, here are some of the errors:
I sent it to a local (not selling) dealer a week ago since it's under warranty and they don't have any updates yet besides "looking into over 50 faults stored on the computer".
Any idea what's going on or what to do?
- PAS restricted
- Transmission error, reverse gear not available (and couldn't reverse)
- Engine control error
- Chassis system error
- Rear differential lock error
- PDCC function not available
- Sport exhaust function not available
- RAS error
- Check engine light
I sent it to a local (not selling) dealer a week ago since it's under warranty and they don't have any updates yet besides "looking into over 50 faults stored on the computer".
Any idea what's going on or what to do?
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Thread Starter
7th Gear
Joined: Jun 2021
Posts: 7
Likes: 1
Appreciate the insight, my selling dealer said it might be caused by battery issues as well. The voltage seems fine when the car is on / accessories are on and the car starts up without a problem, do you know how they diagnosed it or how they fixed it, just by charging the battery?
Also the warnings lights first came on while the engine was on and had been driving for most of the day while idling at a drive-thru.
Also the warnings lights first came on while the engine was on and had been driving for most of the day while idling at a drive-thru.
Rennlist Member
Joined: Aug 2020
Posts: 3,430
Likes: 3,516
From: Orange County California
It really doesn't sound like your servicing Dealer has assigned anyone with an adequate level of diagnostic skills to your car.
An entry level diagnostic procedure is to: 1.) Record/Note/Write Down all of the Diagnostic Trouble Codes (DTC's) that the on board system has recorded. 2.) Clear all recorded DTC's. 3.) Operate the car under all of the various conditions (Drive Cycles) necessary for the on-board systems to exercise and test the systems in question. 4.) Address any DTC's that return (if any return) in the order provided by/through following the (Valley Forge style) Diagnostic Trouble Tree procedure(s) that Porsche specifies. Playing Hunt and Peck by what is sometimes called "Parts Changing" is extremely expensive for whomever is paying the bill(s) and at the very least is time consuming for the dealership as well as the owner of the vehicle.
.
An entry level diagnostic procedure is to: 1.) Record/Note/Write Down all of the Diagnostic Trouble Codes (DTC's) that the on board system has recorded. 2.) Clear all recorded DTC's. 3.) Operate the car under all of the various conditions (Drive Cycles) necessary for the on-board systems to exercise and test the systems in question. 4.) Address any DTC's that return (if any return) in the order provided by/through following the (Valley Forge style) Diagnostic Trouble Tree procedure(s) that Porsche specifies. Playing Hunt and Peck by what is sometimes called "Parts Changing" is extremely expensive for whomever is paying the bill(s) and at the very least is time consuming for the dealership as well as the owner of the vehicle.
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RL Community Team
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Rennlist Member
Joined: Sep 2008
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Classical low voltage errors. Commonly the hauler driver don't lock the car or even worse, leave the key inside. That leaves the car with more drain than it's supposed to. Hopefully the battery is salvageable, trying warranty an AGM battery is a major pain.
Racer
Joined: Feb 2021
Posts: 391
Likes: 436
From: Northern California
