997 system fault visit workshop

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• 997-1 Series (Carrera, Carrera 4, Carrera 2S, Carrera 4S)

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Need Help: "System Fault Visit Workshop" displayed

By haroldterk January 27, 2006 in 997-1 Series (Carrera, Carrera 4, Carrera 2S, Carrera 4S)

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Friday I picked up my new 997C2 Coupe. After going through the orientation and going thru the TMPS settings. When the dealer and I started the car up, we got 2 warnings: Tire low and the service warning (exclamation point!) notice: System Fault Visit Workshop. We thought (incorrectly) that they were related. (When an adjustment or change is made to the TMPS setting) a few minutes are need for the TMPS system to learn. So I drove away that evening, and the TMPS corrected itself with 5 minutes, but the warning did not.

Went in for service on Tuesday: The diagnostics / technician said it was a bad trunk release module (causes the error message and the rear parking lights and license plates lights to be on when the motor is running and the headlight light switch is off.

After the part was overnighted. I returned Wednesday to have that module installed – required the removal of the entire front bumper assembly and headlights! Afterwards, everything appeared fine – no warnings for the rest of day and evening.

This morning when I started the car again, same exact warning “System Fault Visit Workshop” was displayed!

So, has any Rennteamers know or heard of this problem? And what, if any, is the culprit and solution.

1 week old, 500 miles and already 2 visits to the service department, with another planned for Monday.

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Porsche has had some electrical issues with the 997 and 987 models and have been working with these issues. The major concern is the system failure message that comes on the instrument cluster and that is usually caused by the front control unit. There has been a change with the software and the new ones are much better. A couple of gremlins will show up in a new model but there are different control units to fix those problems now. Peter Smith - PCA WebSite - 10/18/2005

The visit work shop warning can be caused by many things but the most common cause right now is a bad front end control unit. The problem manifests it self as faults for the front trunk latch, although there is nothing wrong with it. There is an updated control unit and Porsche has technical information about it.

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Porsche 997: Trouble Codes

A check engine light is not the end of the world. Learn your car's language.

This article applies to the Porsche 997 (2005-2012).

Your ride’s On-Board Diagnostics II (OBD II) system automatically checks and tests different parts of your car. When your OBD II system detects a problem with one or more components, it triggers a light to go on as a warning. Something as innocuous as a nearly empty washer fluid reservoir can trigger a warning light, but so can something more serious, like a cylinder that is not firing properly. When a light comes on, you should ask your mechanic to run a diagnostic to identify the problem and potential solutions, or if you have a diagnostic tool, you should run the diagnostic to determine the problem and help identify potential solutions. Cylinder misfires and problems with your oxygen sensors are the most common reasons why your check engine light comes on.

Diagnostic Codes

Codes p0300-p0307 – cylinder misfire.

Your car’s computer has detected that a cylinder is not firing properly. The code usually lists the cylinder where the problem is (e.g., Cylinder #7). Common symptoms include an engine that is harder to start or an engine that stumbles and/or hesitates. Code P0307 can indicate:

• Faulty spark plug or wire
• Faulty coil
• Faulty O2 sensor
• Faulty fuel injector
• Burned exhaust valve
• Faulty catalytic converter
• Poor compression
• You’re running out of gas

If the code appears but there are no symptoms, consider resetting the code and seeing if it comes back. If it doesn’t, then you’re likely fine. If it comes back, then:

• Check wiring and connectors that lead into the cylinders, such as your spark plugs.
• Replace engine components (again, like the spark plugs, spark plug wires, and distributor cap) as part of your next round of routine maintenance.
• Check coils, coil packs, and catalytic converter. One Porsche owner reports that if you can smell rotten eggs in your exhaust, then your catalytic converter is likely bad.

A flashing CEL is more serious than a CEL that is not flashing. Porsche recommends you don’t drive your car if your CEL is flashing, because a flashing CEL indicates a serious problem that can cause serious engine damage if not resolved.

Codes P0130-P0160 – Oxygen Sensor-Related Problems

Your car’s computer has detected one or more problems with your oxygen sensors, which are the most important elements of your car’s fuel injection system. The 991 has four O2 sensors: two for each catalytic converter on each side of the car. Common symptoms of a failing O2 sensor include:

• Your car irregularly idles at warm-up or after it’s been running for a while
• Poor or no acceleration
• Poor engine performance
• Poor fuel economy
• Weak driving performance
• Idle, high, or low CO concentration

If the code appears but there are no symptoms, consider resetting the code and seeing if it comes back. If it doesn’t, then you’re likely fine. If it comes back, then it’s likely time to replace the oxygen sensors. Some Porsche owners recommend doing this anyway every 30,000 miles or so.

Porsche 911 (997) Trouble Code Table

Related discussions and site.

• 2005 Porsche 911 (997) Carrera: Chronic Check Engine Light - Rennlist.com
• Common Problem Areas in 997.1 - Rennlist.com
• O2 Sensor Signal Biased/Stuck - Rennlist.com
• Check Engine Light Comes On - 6SpeedOnline.com

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• Tech & Service

Unusual Porsche error code - "System Fault - Visit Workshop"

By Alex October 22, 2013 in Tech & Service

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This just came to me from my neighbour. He owns a Boxster and was in the process of polishing the headlights when, upon start up, this error code popped up. Apparently a certain amount of static charge build up may trigger this event. Anybody else experience this with their P cars?

1980 911SC Targa "turbo" - Light Blue Metallic

2007 997TT Coupe - black/black and black - now wrapped Gloss Red Metallic

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First (sad) post - DME Control unit needs replacing

• Thread starter FluffyOwl
• Start date Jun 10, 2021
• Jun 10, 2021

Hey all, I joined the Porsche UK club a few weeks ago, having bought a 2007 987 Boxster in April. Two weeks ago I got a 'Engine fault - visit workshop' error, and the RPM dropped to a maximum of 1000-1500. My local independant Porsche specialist collected it this past Monday and today I received a fab quote for a new DME control unit for just shy of £4k!!! I have a ton of questions, but I am basically looking for some advice about what I should do next? Having only had the car for just over 6 weeks I am obviously gutted. The guys at the garage say it is not repairable. They also mentioned it may be possible to find a s/h one. My question is - why has it taken nearly 4 days to come to this conclusion, having originally said it may be something less serious after attaching their diagnostic device to the car? Is it also possible that the guy I bought it from could have had this before and cleared the error manually? Sorry to be so negative, but it's really bad luck to have this happen only 6 weeks after buying the car. All comments/thoughts gratefully received. N  

Hi First off you want to be certain its the DME otherwise you could be swapping parts which may not fix the fault. If it is the DME you can obviusly go down the route of buying a new unit from Porsche which will cost a fair few ££££'s. The early 987 uses a Bosche ME 7.8 DME - these can be picked up secondhand for anything from about £100 up to ridiculous prices. Secondhand DME's can be reprogrammed to other vehicles providing that that the security info and configuration data is copied accross to match the vehicle as the immobiliser system ties into it. Dependent on what car the donor vehicle was it may also need to be remapped to match your vehicle - this can also be done fairly easily if you have the correct equipment. It is very unlikely that a Porsche dealership will be able to do this though as you need some additional systems that they do not use. There are a few people on this forum (myself included) who may be able to assist in this process if you need some advice or programming done on modules. Thanks  

Thanks for the quick reply, really appreciated. I have some more questions; How would I know if it is 100% the DME control unit? As I said, the guy plugged his diagnostic device into the car on my driveway, and I would have assumed if it was that serious, that it would report this almost immediately? Why take nearly 4 days to conclude this? Are they just really busy? I haven't actually spoken with the engineer yet, just the person who contacts the customers with the bad news...ha Who and/or how would I source a suitable donor unit? Logistically, assuming it is confirmed as a faulty DME, how would I get the work done if the car is not really fit to drive? N  

To be honest its difficult to say without knowing what was done and what faults were showing. Depending on what equipment was being used - certain test procedures can be carried out to check functionality. In my experience DME's do go wrong although not that frequently. I would be inclined to drill down and find out how they drew their conclusions. It may be that they had a look at the vehicle analysis log (if using piwis) - this is a very long report about the cars health. Or they could have just made an assumption - its difficult to say without knowing more. £4k does seem rather steep for a replacement DME and programming - even by Porsche standards !!! ebay or vehicle dismantlers are probably the easiest source of a used dme, just do a search for the relevant part and make sure you use the correct part number - the parts catalogue for 987s is here - https://www.porsche.com/u...riginalpartscatalogue/ p531 on my computer if you want to PM me i can give you some details about programming on and off the vehicle. Thanks  

PCGB Member

I have a friend who has used Cartech Electronics for a reconditioned and recoded DME for his 996 911 variant. Cost is a much more reasonable £65 to £185 plus VAT https://www.cartechelectronics.com/ecu-rental/  

• Jun 11, 2021

Thanks Richard. I had a quick look at the site last night, and I plan to give them a call today to discuss options. Much appreciated.  

When the garage called me they did say the cost of the official Porsche part had increased in price significantly recently. I'll continue to investigate, and also check ebay for recon units using the part number from the link you supplied. I am hoping the garage will call me today with some better options. If they are worthy indie Porsche garage I would expect them to have some contacts and options other than official Porsche parts albeit with significantly lower labour costs.  

Looking at the official Porsche parts catalogue for my car (P531 as @irb26 says), I get this; Part Number Description 997 618 603 05 Control unit 1 - dme - D >> - MJ 2006 997 618 601 05 Control unit 1 PR:-660 - dme - D - MJ 2007>> Which one do I search for? Thanks again irb26!  

Richard_Hamilton

According to my copy of PET, part number 997.618.603.05 has been superceeded by 997.618.603.07, and is £2785 inc VAT. 997.618.601.05 has been superceeded by 997.618.601.06, and is £1972 inc VAT If your car is 2007, then I think you need 997.618.601.06. A call to an OPC parts department would confirm the number and price. There is a new one on eBay here: https://www.ebay.co.uk/itm/232370418560 by the way. It sounds to me like your indy hasn't done their homework on pricing a new one. Sure, it will need fitting, coding and programming, but £4000 semms OTT to me. Is the car driveable? If not, you probably don't have many choices, but if it is then I would be tempted to take it elsewhere. As Richard says, the most economical way would be to get the DME looked at by someone like Cartech or BBA Reman ( http://www.bba-reman.com/gb/index.aspx ). Failing that, irb26's suggestion is also a good option.  

Richard_Hamilton said: According to my copy of PET, part number 997.618.603.05 has been superceeded by 997.618.603.07, and is £2785 inc VAT. 997.618.601.05 has been superceeded by 997.618.601.06, and is £1972 inc VAT If your car is 2007, then I think you need 997.618.601.06. A call to an OPC parts department would confirm the number and price. There is a new one on eBay here: https://www.ebay.co.uk/itm/232370418560 by the way. It sounds to me like your indy hasn't done their homework on pricing a new one. Sure, it will need fitting, coding and programming, but £4000 semms OTT to me. Is the car driveable? If not, you probably don't have many choices, but if it is then I would be tempted to take it elsewhere. As Richard says, the most economical way would be to get the DME looked at by someone like Cartech or BBA Reman ( http://www.bba-reman.com/gb/index.aspx ). Failing that, irb26's suggestion is also a good option. Click to expand...

I called an official Porsche garage to get the exact part number. The recon guys want this before taking on any work or quoting me. The new part now ends in '07' 997 618 601 07, and is indeed around £3600 inv VAT. I don't know if this is due to chip shortage or what. At least I know exactly which part I am looking for, so I can search for recon unit etc. Will report back.  

Quick update; BBA Reman said they can't help right now. Cartech Electronics do have an ECU/DME to exchange, but I am waiting for confirmation from the garage who has the car to provide another number on the broken unit. Then I can (hopefully) get mine sent off to have the data transferred. They offer a 1 year warranty on the unit, plus a 14-day return policy (with a re-stocking fee of just over £100 - a bit steep, but not a dealp-breaker). The total cost of the Cartech service is £499+VAT. Comparing the cost of sourcing a recon/salvaged unit and getting the data transferred, against the cost of the 'one stop shop' solution form Cartech for no perceivable cost difference, I think i'll try Cartech. It's a no-brainer against the £4k I will be charged for an official Porsche unit. Nick  

911hillclimber

Best approach IMHO, you have a one-stop process, nice and simple, always the best! Good luck with it all.  

• Jun 14, 2021

I hope everyone got out over the weekend to enjoy the weather! Huge thanks to everyone who contributed last week. As you can imagine, having only enjoyed the car for just over 6 weeks, I was very anxious. The ECU/DME is being picked up today and delivered to Cartech tomorrow. Hopefully, all being well, I'll have the car back on the road early next week. The most disappointing thing for me is the lack of focus from the local Porsche 'specialist'. They collected the car last Monday, heard zip from anyone for three days, and the only person I spoke to after that was the receptionist. My perception of a specialist is a bunch of enthusiasts who get to work on Porsches all day...hmmm..haha. I'll keep you posted.  

Yes, not all Indies are equal, just as all OPC's aren't. I am lucky to have found a good Indie because the OPC was not that sharp unless I spent a lot! My Indie advises carefully and is very focused indeed. Zuffenhaus in south Birmingham.  

• Jun 15, 2021

FluffyOwl said: I hope everyone got out over the weekend to enjoy the weather! Huge thanks to everyone who contributed last week. As you can imagine, having only enjoyed the car for just over 6 weeks, I was very anxious. The ECU/DME is being picked up today and delivered to Cartech tomorrow. Hopefully, all being well, I'll have the car back on the road early next week. The most disappointing thing for me is the lack of focus from the local Porsche 'specialist'. They collected the car last Monday, heard zip from anyone for three days, and the only person I spoke to after that was the receptionist. My perception of a specialist is a bunch of enthusiasts who get to work on Porsches all day...hmmm..haha. I'll keep you posted. Click to expand...

• Jun 21, 2021

I got the car back on the road last Friday. All seems well, and I'm really looking forward to giving her a good clean and blast over to the coast. The only downside is the car came back with a ton on oily handprints across pretty much the whole of the rear of the car, and also some oily smudges on the drivers mat. The car interior is tan so it really shows. I'm going back to the garage to complain. Overall I'm just relieved I got my car back in working order and didn't have to pay all that money. Thanks to everyone on the forum.  

Marked car!? Time to find a real marque specialist. Have a good look at the back pages of the Porsche ost or say roughly where abouts you are and wait for recommendations. Pleased to read it is functioning again.  

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• Porsche 911 Model Range Forums
• 992 (2018 - current)

992 - Chassis system fault

• Thread starter Wrightflyer911
• Start date 11 Sep 2020

Wrightflyer911

• 11 Sep 2020

• 12 Sep 2020

Sorry to hear that, you must be gutted. I hope the garage are taking very, very good care of you and you are driving something special whilst they get it fixed. I've not heard of anything similar, but you might want to check out the US Rennlist forums to see if that has happened before. Hope it all gets sorted ASAP in your favour.  

Wow, sorry to hear that!! Must be so frustrating - a new car to enjoy and then a problem :sad: Six weeks at the dealership sounds like they're waiting for a batch of parts to be made - or haven't engineered a solution... Sorry, I can't add anything regarding the nature of this specific problem but does your car have PDCC by any chance?  

Paul Ricard

Hi That is bad luck. I would be really unhappy! I guess it is part of cutting edge car ownership. They don't go wrong often, but when they do! Hope you get it back soon. Berni  

• 16 Sep 2020

Thanks for your replies everyone. To make things worse I have a Boxster T as a loaner. Great car but not a 911. The good news is that this is being switched for a 992 at the end of the week.  

I had this error appear once whilst I was coincidentally recording the car starting up (was my 1st week with the car!). It hasn't appeared since and it's been 9 months now. Porsche technician said unless it comes back to just ignore. Be curious to know why your one presented the error?  

• 20 Dec 2020

This is one of the many error messages that popped up on my car yesterday when I was having the 'dead battery" problem. I wonder if the message is a part of the electrical gremlins rather than an actual chassis problem.  

I had a dead battery late last year as well and I had a variaty of errors pop up. Even after fully charging the battery a lot of the errors persisted. Was told to simply drive the car around the block and it would sort itself which it did.  

Neoto said: I had a dead battery late last year as well and I had a variaty of errors pop up. Even after fully charging the battery a lot of the errors persisted. Was told to simply drive the car around the block and it would sort itself which it did. Click to expand...

Indianapolis

It seems this thread has shifted course a bit, and wandered off into flat battery discussions. As best I understand it many if not the majority of Porsches live different lives from that which they were initially designed for, in that they can spend inordinate amounts of time laid-up, not only that but modern cars place much higher demands on their batteries than ever before to maintain the various circuits that require a constant supply of electricity when the vehicle is not in use, and which is a whole lot different from times past where with just enough voltage to provide a spark was enough to get it going with a push or use of a starting handle to turn the engine over, thus old batteries could soldier on and on to some extent.. Batteries suffer greatly in a laid-up situation as is obvious by the many threads relative to trying to overcome the logical drop in voltage during long periods of inactivity. If you view a battery as a water storage tank in your house, it is supplied via a water pipe from the mains water supply and kept topped up using a system that senses the level of water in the tank to maintain that water at a required level... Logical..? if you have a dripping tap, then the water level will drop in the tank until the automated top up float reaches a point where it switches on the water supply to the tank to restore the water level in the tank to the required level. Simplez..? In a car the battery depends upon the alternator to restore the charge, and during lay-up, the effect on the circuits that need voltage to keep them active, is similar to the dripping tap, thus without the car`s engine/alternator running on a semi regular basis the supply of voltage in the battery is depleted. Unfortunately, unlike the dripping tap where the time between the drips may become longer and the drips smaller as the water level in the tank drops to near empty, in a cars digital system the reducing voltages can equate to sensors of all sorts returning incorrect signal levels/inputs to the processor, which then tries to assess this false information from a variety of areas to then display a line of text on the dash, resulting in unimaginable levels of spurious digital nonsense.. My guess is that is why Ctrl Alt Del was ever the way to reset processors of many types, or pulling the plug then powering things back up again to perform a re-set. as opposed to trying to figure out exactly the cause of any message or sequence/order of messages that occurred as the result of the battery voltage slowly dropping to a stage where the sensors and processor inputs and outputs made no sense whatsoever..? Voltage being the life blood of a battery, just like us who can donate some degree of our blood, and might even get light headed in the process, if they take too much blood then a sequential shut down of organs seems likely till the end is neigh..? A battery can operate well for years with it`s voltage maintained within reasonable levels, but once those lower levels are exceeded it`s ability to recover to full strength is forever limited, and the more often it is drained below the ideal levels of operation, the battery`s ability to maintain it`s voltage can be considerably reduced and in time to a stage where it will just cause the vehicle to become confused. It seems the more often and longer you mistreat your battery, the more risk of it failing.. :?:  

Sorry to read that Hoss... I wonder if it is possible that your Porsche has spent time not being used and dependant on the age of the battery or whether or not it has been kept on a conditioner when not in use, thinking perhaps before you bought it... It may be that the battery is not up to the mark, which can create all sorts of spurious alarms due to the drop off in voltage arriving at the sensors and thus them not being able to feed back accurate information....?  

Spa-Francorchamps

might be the engine mounts - temu make them for porsche!!!!  

Luddite said: Sorry to read that Hoss... I wonder if it is possible that your Porsche has spent time not being used and dependant on the age of the battery or whether or not it has been kept on a conditioner when not in use, thinking perhaps before you bought it... It may be that the battery is not up to the mark, which can create all sorts of spurious alarms due to the drop off in voltage arriving at the sensors and thus them not being able to feed back accurate information....? Click to expand...

Jeez..!!! Have they advised whether or not to drive it until then..?  

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Mar 6, 2005 11:58:20 PM

System fault, Return To workshop.

Mar 7, 2005 12:32:29 AM

Re: System fault, Return To workshop.

Mar 7, 2005 12:42:59 AM

Mar 7, 2005 2:51:23 AM

MAKE SURE THEY KNOW SOMETHING!

Mar 21, 2005 8:48:53 PM

Mar 21, 2005 9:27:10 PM

Mar 21, 2005 9:59:14 PM

Mar 22, 2005 12:58:17 AM

Mar 22, 2005 1:24:46 AM

Quote: jfraser said: It's ridiculous, why isn't this a recall item? My 997S was delivered on Saturday. As soon as I switched on the car I got "System fault, return to workshop" 38 miles on the clock!! Needed the car jump started this morning to get it to a dealer (to recap..38 miles on the clock, no miles driven by me, system fault & dead battery)...fabulous initial product quality!! .....JD Powers, I'm waiting for your call Using this excellant forums' info, I printed out the relevant thread and gave it to the dealer. Sure enough it's the solenoid problem...The issue will be fixed in a couple of hours....Van 911, I'll send you an email with the relevant part no, info etc. I presume that Porsche manufactures using ISO or 6 sigma quality assurance (which means that they have parts traceability back to batch/source) So they know which cars are affected... FYI, Although I only just received the car (March 19th) it was built 12/04 (which seems to be the month when Porsche used these 'dodgy' switches)

Mar 22, 2005 1:32:40 AM

Mar 22, 2005 1:50:38 AM

Quote: jfraser said: Problem sorted!! Beltar, you won't have a problem as your car has only just been manufactured, they've upgraded the seal on the switch.... FYI The part is about the size of a matchbox, and the thickness of 2 matchboxes, it has about a 2ft long cable extending from it. Van 911, call 310 478 4095, ask for Mario in the service dept. I told him you may call, so he'll give you the part nos. etc. Just tell him it's the same issue as the Midnight Blue 997S he fixed today (21st March)

Mar 22, 2005 7:41:44 AM

Mar 22, 2005 1:37:16 PM

Quote: jfraser said: . . . FYI, Although I only just received the car (March 19th) it was built 12/04 (which seems to be the month when Porsche used these 'dodgy' switches)

Mar 22, 2005 5:39:32 PM

Quote: Patriot said: Quote: jfraser said: . . . FYI, Although I only just received the car (March 19th) it was built 12/04 (which seems to be the month when Porsche used these 'dodgy' switches)

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ignition lock warning light

Asked on sat 03/08/2014 electronics, expert answer:.

submitted by Dustin Aydt [SVR] on Sun 04/13/2014 04:01 am

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System fault message

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I made a brake fluid flush , and clutch bleed and after starting the car and driving I get this message " System Fault visit workshop" and a picture of a LIGHTNING BOLT. It comes on and off al the time. Any ideas?  

I am getting the same error message - did you find an answer?  

dawg said: I am getting the same error message - did you find an answer? Click to expand...

From what I have read if you rub polyiester in the front headlights, enough to create static, it ruins the fron control unit. As ridiculous as it sounds seems to be true. I can imagine the mechanic leaning to put brake fluid make the static. Seems to be a known error for 997 and 987s. Can anyone get the part number and where to buy it cheap?  

The front control unit has generally been a problem. Porsche is on their 11 rev on it. W/Xenon Headlamps 997 610 105 11 W/O Xenon 997 610 106 11 Both of these list from Porsche at $169.18 Best, Scott  

Thanks a lot Scott  

Bump on this thread... I had some work done at an independent shop a few weeks ago... including brake fluid flush. Afterwards, I got the "system fault" message. They can read out PIWIS messages, but cant write anything in. Their readout indicated some kind of airbag problem. I have aftermarket seats, and the dealer had to code out the bags in the seats before all this. I thought I would have to go back to have them fix this again, but didnt have time to take care of it then. So, I left the car sitting in the garage for about a week, and the battery was dead at that time. I thought, fair enough, I left the dome light on or something, and recharged and went on my way. Then, I left the car sitting for a couple weeks again. Dead again and I recharged again. This time, I was getting PSM failure messages sometimes and check engine messages another time after starting. I called the dealer and their first impression was that the battery was the culprit. I took the battery out of the car and had it checked at AutoZone. They had some handheld tester thing that said the battery was bad. Is this tester accurate? Should I try replacing the battery first or just let the dealer have at it?  

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