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Joined: 28 Jun 2014
Posts: 61
Location: East Midlands

2004 Porsche 997 Carrera 2S

PostPosted: Mon Apr 29, 2019 5:47 pm    Post subject: Is it possible to reset the DATE on 997.1 with PCM2.1? Reply with quote

The date on my PCM2.1 suddenly changed to 01/07/2000 a few weeks ago, and following a battery disconnect at the garage last weekend, then reset to 01/01/2000.

I understand the date previous reset automatically, but have seen recent info (including an email from TOMTOM regarding my old Gen1 Satnav) referring to some 'technology switch off' which sounds related, and suspect is the reason the date hasn't updated?

My question is, is there ANY way of changing the date MANUALLY on the PCM2.1 or is every PCM2.1 now going to show the wrong date from this year onwards?

Any help appreciated?

T. Smile
Porsche 997 Carrera S.
ex Mitsubishi GTO 3.0 Twin Turbo
ex Vauxhall Carlton 3000GSI 24V
ex Vauxhall Cavalier 2000GSI 16V
ex BMW 318i Cabriolet
ex Vauxhall Cavalier 1.8 LX
ex Ford Fiesta Mk1 XR2
ex Ford Fiesta Mk1 1100L
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Long Beach

Joined: 21 Mar 2015
Posts: 6477
Location: Brighton

PostPosted: Mon Apr 29, 2019 6:14 pm    Post subject: Reply with quote

Im working on this problem atm , the car is back with us tomorrow after being left outside for a number of days in the hope the gps would update it .

I did manage to use a tester to get the correct date last time but it was a bit of a mission .. the pcm will reset after you exit the programing with the tester and it keeps defaulting back to the wrong date.

I did it in the end but then had to do another battery removal and was back to square one .. hence its back tomorrow for me to try again.

Ill let you know tomorrow night i guess Smile

Not all units do this .. in fact very few so im guessing there is some software fault so an OPC reinstalling the software might work but i'm guessing here and it wont be cheap .. Indys don't tend to have the update discs .. there are an awful lot of them im afraid .

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