toby_b Posted February 5 Report Share Posted February 5 (edited) Inbetween some icy mornings and a week on holiday I came back to find my Cayman not happy about starting up. I put the car on charge and it now fires up. So far so good... Unfortunately I have a message advising me I have a "PASM fault" and that it is "Possible to drive on carefully". I have tried multiple code readers now and not one displays an issue. Voltage before start up is 12.2v but down to 11.9v sometimes. During driving it is showing 14.1v. I've done about 90 miles since the power has been restored. Has anyone been in this situation before? Car drives fine, PASM still seems to be working just no Sport and annoying message constantly showing up! Edited February 5 by toby_b Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 Just now, toby_b said: Inbetween some icy mornings and a week on holiday I came back to find my Cayman not happy about starting up. I put the car on charge and it now fires up. So far so good... Unfortunately I have a message advising me I have a "PASM fault" and that it is "Possible to drive on carefully". I have tried multiple code readers now and not one displays an issue. Voltage before start up is 12.2v but down to 11.9v sometimes. During driving it is showing 14.1v. I've done a bout 90 miles since the power has been restored. Has anyone been in this situation before? Car drives fine, PASM still seems to be working just no Sport and annoying message constantly showing up! Porsche specific code readers ? If not that's where I'd go next... Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 5 Author Report Share Posted February 5 Just now, iborguk said: Porsche specific code readers ? If not that's where I'd go next... Sadly not. Happy to purchase one but they seem to be very expensive. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 One option https://www.ukpartsdirect.com/icarsoft-por-v2-0-porsche-full-system-diagnostic-scan-tool-the-official-icarsoft-uk-outlet.html Quote Link to comment Share on other sites More sharing options...
CMA Posted February 5 Report Share Posted February 5 4 minutes ago, toby_b said: Sadly not. Happy to purchase one but they seem to be very expensive. iCarsoft POR v2. Worth every penny 1 Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 Another which can do Porsche and others for a bit more... https://www.ukpartsdirect.com/icarsoft-cr-v2-0-full-system-5-manufacturer-diagnostic-tool.html 1 Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 (edited) Also to check my own thinking here , how old/good is the battery ? Sounds a bit weak from your first post. I have seen threads where the PASM issue can be caused by a weak battery. That said having that kind of diagnostic tool around is just good to have anyway.. Edited February 5 by iborguk Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 5 Author Report Share Posted February 5 I can't find a date code on the battery yet but I bet it's the original. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 Just now, toby_b said: I can't find a date code on the battery yet but I bet it's the original. If it's a Porsche battery the week/year should be stamped on the negative terminal and if it is the original I'd start with replacing that. Also if your car is near power and not being used that often I'd invest in a battery maintainer. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 (edited) Also note when replacing the battery that for optimal charging the car needs to be "told" the battery has changed/is new, which the iCarsoft diag kit can do. Plenty of people will tell you they don't bother with this and maybe they don't have visible issues but the Porsche coding process is there for a technical reason. A link and a couple of videos which may help... https://rennlist.com/forums/991/1256464-icarsoft-and-updating-bms-new-battery.html Edited February 5 by iborguk Quote Link to comment Share on other sites More sharing options...
CMA Posted February 5 Report Share Posted February 5 26 minutes ago, toby_b said: I can't find a date code on the battery yet but I bet it's the original. It's done well to make it to almost 11 years if it is, I think my 2013 car is on the original battery too, but I keep mine on a Ctek maintainer as much as possible but expecting to replace it any time soon. Decent priced batteries can be got from https://www.tayna.co.uk/ with quick delivery if you need a new one Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 5 Author Report Share Posted February 5 Thanks for the advice so far. I'm on the web looking at various testers. Wish I could find one that could also activate my PSE when I finally get round to fitting it. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 5 Report Share Posted February 5 18 minutes ago, toby_b said: Thanks for the advice so far. I'm on the web looking at various testers. Wish I could find one that could also activate my PSE when I finally get round to fitting it. Cayman 981 but same deal, you'll need access to a Porsche PIWIS to code it. https://static.nhtsa.gov/odi/tsbs/2015/MC-10198543-9999.pdf Quote Link to comment Share on other sites More sharing options...
cozzykim Posted February 6 Report Share Posted February 6 Can the iCarsoft V2 do stuff like activate the rain sensor, and toggle the stop/start function so that it's off by default? Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 6 Author Report Share Posted February 6 Checked the battery today and it states 2013. I think it's time for a replacement. Not sure if I will go for the official route after my quote of £420 coded and fitted. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 6 Report Share Posted February 6 (edited) 7 hours ago, cozzykim said: Can the iCarsoft V2 do stuff like activate the rain sensor, and toggle the stop/start function so that it's off by default? No. That kind of coding will not be in scope. Again a Porsche PIWIS is needed for that. Edited February 6 by iborguk 1 Quote Link to comment Share on other sites More sharing options...
Paul P Posted February 6 Report Share Posted February 6 7 hours ago, cozzykim said: Can the iCarsoft V2 do stuff like activate the rain sensor, and toggle the stop/start function so that it's off by default? As others have said. You need something that can “code” things. The newer icarsoft units have some capability as do the foxwell. But they seem to do some not all. Specifics of what you need, especially for a 981 would suggest find someone with a PIWIS. Indy or enthusiast - there’s a map pinned in the technical section. Likely you need pay and Indy, local enthusiast will likely code for a beer. 1 Quote Link to comment Share on other sites More sharing options...
Lonewolfgjp Posted February 6 Report Share Posted February 6 1 hour ago, toby_b said: Checked the battery today and it states 2013. I think it's time for a replacement. Not sure if I will go for the official route after my quote of £420 coded and fitted. I had the dreaded flat battery on Sunday and after a lot of messing around to get to the battery found it had gone. Ive changed mine over today and no faults or issues, 20 minute job and £180 for a Varta battery on next day delivery 👍 Mine also looked to be the original Porsche battery from 2012 😩 1 Quote Link to comment Share on other sites More sharing options...
TV8 Posted February 6 Report Share Posted February 6 I had a lot of PSM error codes on my 996. Pretty certain it was related to volts. Despite new battery, if I didn’t use for a couple of weeks, error message. Keep it on the ctek and no error codes. Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 6 Report Share Posted February 6 2 hours ago, toby_b said: Checked the battery today and it states 2013. I think it's time for a replacement. Not sure if I will go for the official route after my quote of £420 coded and fitted. Yup that battery is past due replacing. Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 9 Author Report Share Posted February 9 New battery did not cure the issue sadly. Next stop a specialist. Quote Link to comment Share on other sites More sharing options...
CMA Posted February 9 Report Share Posted February 9 Are you saying you cleared the error codes and it came back? Or just popped a battery on and didn't clear any error codes? Quote Link to comment Share on other sites More sharing options...
toby_b Posted February 19 Author Report Share Posted February 19 My code reader did not display any error codes before or after the battery was replaced. However I did manage to get it fixed. The car was checked with a more advanced tester which displayed a C11006 Coding and a C11007 Verification code. The car was taken to a local specialist who recoded the car and all is good in the world of Porsche ownership. Moral to the story.... don't let your battery go flat! Quote Link to comment Share on other sites More sharing options...
iborguk Posted February 19 Report Share Posted February 19 Glad it's sorted. For ref... C11006 Diagnostic information Rearend electronics Production mode active/Coding Faulty Diagnostic conditions The control unit must be active in order to test internal function sequences and diagnosable inputs/outputs. In the event of a fault, check whether the fault is permanently >present<. To perform the check, erase the fault memory, meet the diagnostic conditions and read out the fault memory again. Fault setting condition(s) One or more production modes or production interventions are activated. I No/incorrect coding Rearendelectronics controlunitfaulty Fault effects Comfort functions: Function not available or available only to a limited extent C11007 Diagnosis information Rearend electronics Rearend electronics Calibration Diagnostic conditions The control unit must be active in order to test internal function sequences and diagnosable inputs/outputs. In the event of a fault, check whether the fault is permanently >present<. To perform the check, erase the fault memory, meet the diagnostic conditions and read out the fault memory again. Fault setting condition(s) Panorama roof system, Calibration incorrect or not carried out Rear spoiler, Calibration incorrect or not carried out Roof console Control module Rearend electronics incomplete taught Control module Rearend electronics not taught (Control module Rearend electronics new ) E In the >PIWIS Tester II< A >Diagnostics< A Rearend electronics => Drive links/tests => Teaching <, perform the respective standardization/calibration/teaching operations. Fault effects Function not available or available only to a limited extent 1 Quote Link to comment Share on other sites More sharing options...
cozzykim Posted February 21 Report Share Posted February 21 On 2/6/2024 at 7:23 PM, iborguk said: No. That kind of coding will not be in scope. Again a Porsche PIWIS is needed for that. I bought the iCarsoft V2 today, it'll be useful to have around anyway. 👍 1 Quote Link to comment Share on other sites More sharing options...
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