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318touring
Monza


Joined: 21 Jan 2011
Posts: 248
Location: Wellington, New Zealand


PostPosted: Sat Apr 19, 2014 10:16 am    Post subject: Setting correct date in PCM 2.0 Reply with quote

Yes, I have read the manual. The Date/Time option is greyed out and not-selectable.

I have just changed the battery, and tried to set the date (currently set to 1998), but the Date/Time was greyed out. I can set time easily.

Any help please, it is PCM 2.0 (on 2003 C4), I know PCM's almost useless but it irks me to not being able to set something that simple correctly.
 
  
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gilessaville
Trainee


Joined: 28 Jan 2014
Posts: 64



PostPosted: Sat Apr 19, 2014 7:23 pm    Post subject: Reply with quote

Fell for this myself a few weeks ago. It will set itself once out in the open via gps I assume!

I spent some time scratching my head on this one until I went for a spin and voila....on my 2004 PCM2. frustrated
 
  
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318touring
Monza


Joined: 21 Jan 2011
Posts: 248
Location: Wellington, New Zealand


PostPosted: Sun Apr 20, 2014 8:38 am    Post subject: Reply with quote

Yes, I read through the Porsche workshop manual, seems that it needs maps? I don't have the maps for NZ and can't be bothered getting one since it'll be out of date.
 
  
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jamesdrew1975
Newbie


Joined: 28 Feb 2011
Posts: 41
Location: Oulton Park


PostPosted: Mon Apr 15, 2019 11:58 am    Post subject: Correcting the date on PCM2 Reply with quote

So, I know this is probably a bit OCD but my PCM2 (2003 turbo) is showing the wrong date and for the life of me I can't find anywhere in the manual where you can manually adjust the date if it's not showing correctly. Does the date automatically update from radio or GPS signal or do I need to get my indie to change it via OBD?
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2003 996 Turbo
 
  
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MisterCorn
Dijon


Joined: 08 Jan 2011
Posts: 7068
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Mon Apr 15, 2019 12:20 pm    Post subject: Reply with quote

I would have thought it would have picked that up from the GPS, what date is it showing?

MC
 
  
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jamesdrew1975
Newbie


Joined: 28 Feb 2011
Posts: 41
Location: Oulton Park


PostPosted: Mon Apr 15, 2019 8:19 pm    Post subject: Reply with quote

It's showing 4th Jan 2019.
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Paynewright
Monza


Joined: 17 Apr 2018
Posts: 189
Location: Nr Lutterworth Leics


PostPosted: Tue Apr 16, 2019 9:26 am    Post subject: Reply with quote

Did they fit a flux capacitor at the last service? Smile
 
  
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4b4
Nürburgring


Joined: 15 Jun 2015
Posts: 430
Location: Suffolk


PostPosted: Tue Apr 16, 2019 10:03 am    Post subject: Reply with quote

US date format, possibly, 04/01/2019?
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2004 996.2 C4S Cabrio Tip in Arctic Silver
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6783
Location: Brighton


PostPosted: Tue Apr 16, 2019 7:06 pm    Post subject: Reply with quote

Pcm are my very weak point i'm afraid but don't you just press set button , pcm settings then the date is listed and you can alter it ?

Failing that it can be done with a tester but you need one that will communicate with the pcm .
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jamesdrew1975
Newbie


Joined: 28 Feb 2011
Posts: 41
Location: Oulton Park


PostPosted: Tue Apr 16, 2019 8:41 pm    Post subject: Reply with quote

Date format can be changed (dd/mm/yy, mm/dd/yy etc) but you can't manually enter the date although you can manually enter/set the time. Leads me to think that there must be some automatic system (GPS or radio) which it uses for the date but can't find any clues. Makes me wonder though if that's the case why can't it set the time automatically too? Dont know
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6783
Location: Brighton


PostPosted: Wed Apr 17, 2019 7:39 pm    Post subject: Reply with quote

Just a stupid question but your nav map does update and show your correct location doesn't it ?

if it is done by GPS and the GPS antenna is not working .. common after a screen replacement then it wont update time or date .
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jamesdrew1975
Newbie


Joined: 28 Feb 2011
Posts: 41
Location: Oulton Park


PostPosted: Thu Apr 18, 2019 11:49 am    Post subject: Reply with quote

deMort wrote:
Just a stupid question but your nav map does update and show your correct location doesn't it ?

if it is done by GPS and the GPS antenna is not working .. common after a screen replacement then it wont update time or date .


Ah, not had a screen replacement but do have a large bulls-eye stone chip at the bottom of the screen in the middle. Need to get insurance to look at it to see if it's repairable or a new screen job. I'll look at my nav next time i go out to see if position updates. That should hopefully rule out any potential GPS antenna issue.

Thanks for all of the input so far.
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jamesdrew1975
Newbie


Joined: 28 Feb 2011
Posts: 41
Location: Oulton Park


PostPosted: Wed Apr 24, 2019 11:51 am    Post subject: Reply with quote

So, I took the car out for a good run at the weekend and checked the nav was updating (which it was) so seems to suggest the GPS antenna is OK. I was out for about 2 hours but still no correction on the date front. I'm guessing it is just one of those things that I'll have to put up with and maybe it'll sort itself out when I'm not looking. PC
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6783
Location: Brighton


PostPosted: Wed Apr 24, 2019 6:55 pm    Post subject: Reply with quote

I've just had something similar but on a 997 which i think is a pcm 2.1 ..

i had the battery disconnected to change a starter motor .. it now defaults to either 7.7 2000 or 1.1 2000.

I tried a vehicle handover with a tester but it didn't fix it .. it did however screw up the cab roof which would no longer close .. separate issue from the pcm fault though .

For any mechanics .. check the Rear end CU after a handover .. if it looses the coding then even though the roof has its own CU it will stop the roof from closing ... its the 987 fault basically .

Car outside .. i must have coded the date 6 times in all with some attempts not working with others working but as soon as the pcm reset it went back to the wrong date .

Finally with the car being outside for an hour .. me messing about with coding it to Germany and back i entered the date .. left it for a few mins before exiting with the tester .. it reset but kept the date !!

A lot of faffing around but it did work in the end .

Downside is i had to disconnect the battery to fix the roof fault so ended back at square one but it did kinda prove to me it can be fixed .. just a lot of messing around with a tester to get it to be the correct date .

It would appear that just leaving the car outside and relying on GPS doesn't always work .. basically beating it to death with a tester will ... well sometimes.



Customer is a Piston heads forum user .. he checked the site as i was working on it ..many reports of this fault but no fix is mentioned .
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Jam911
Albert Park


Joined: 31 Oct 2010
Posts: 1505



PostPosted: Wed Apr 24, 2019 7:10 pm    Post subject: Reply with quote

Watching from the 997 area...
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6783
Location: Brighton


PostPosted: Wed Apr 24, 2019 7:34 pm    Post subject: Reply with quote

Jam911 wrote:
Watching from the 997 area...


I think its a rare fault atm due to the fact i've had god knows how many batterys disconnected from these cars over the years .. but at the end of the day we are into software faults .. these are always a pain at the best of times .

Perhaps its becoming more common Dont know its still a date malfunction though . not really a big deal but i do understand the OCD aspect .. i just dont like throwing money at said problems .
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Mallone
Newbie


Joined: 10 Feb 2017
Posts: 17
Location: London


PostPosted: Thu Apr 25, 2019 1:10 pm    Post subject: Reply with quote

Had the exact same problem with my Boxster. Looks like it's an issue with an old satellite.

My Thread on Boxa.net here: http://www.boxa.net/forum/topic/79995-pcm-21-date-incorrect/
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Current: 986 Boxster S
 
  
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Robertb
Dijon


Joined: 01 Sep 2003
Posts: 7108
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Thu Apr 25, 2019 1:35 pm    Post subject: Reply with quote

Is there a way of rebooting the PCM to make it 'find' new satellites, or maybe change the location of the car to somewhere else and back again to force it to look for satellites? It might then pull in the proper data.

With my old A8 there was a combination of buttons to press to reboot the MMI.
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"911- the guilt-free supercar"

Current: 2003 C4S Coupe, seal/black

Ex: '02 C4S Coupe, '96 993 Targa, '88 Carrera Sport Coupe
 
  
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kurlykris
Indianapolis


Joined: 30 Jun 2014
Posts: 2447
Location: Warwickshire


PostPosted: Thu Apr 25, 2019 6:40 pm    Post subject: Reply with quote

I wonder if it something to do with the recent satellite WNRO ( GPS week number roll over) at the beginning of the month Question

I noticed that my TomTom had stopped displaying the GPS actual speed and there was no way to get it back, it was just a blank space on the screen, then a few days later received an email from TomTom explaining about the WNRO and I needed to update my device, lo and behold, the update reinstated the GPS actual speed display Grin

I must check and see if this has affected my PCM 2.1 in the Boxster, not that I`d notice as I never use the Nav as it`s rubbish Sad
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2006 Boxster S sport chrono
2010 Mercedes E350 AMG Sport

 
  
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chatuge
Newbie


Joined: 20 Mar 2016
Posts: 6



PostPosted: Wed May 22, 2019 6:54 pm    Post subject: Reply with quote

Call up Precision Porsche! They just fixed this on mine! There MAY be a tech on this very thread that can help you in fact Wink
 
  
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