whitex
Well-Known Member
- Joined
- Jul 30, 2021
- Threads
- 58
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- 4,952
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- Location
- WA, USA
- Vehicles
- 2023 Taycan TCT, 2024 Q8 eTron P+
- Thread starter
- #1
Taycan is a giant computer, so the stereotypical IT "Have you turned it off and back on yet" diagnostic very much applies. Does anyone want to share the quickest method to reset the Taycan computers? The long method is to shut the car down and leave it alone a 30-60 minutes. Any proven fuse pull methods?
Some background:
I was on a roadtrip this weekend, in the middle of a state park, and my PCM would not boot - stuck on the screen showing "Taycan", though the backup camera worked, HVAC and audio worked, even Carplay connected (but would not show). It was a particularly bad moment to lose navigation as it was dark, LTE coverage was poor so with Taycan's insulated glass the cell phones could not be used to navigation unless we stuck them out of the car window. Rebooted twice via engineering mode, no change. Leaving it locked for 20 minutes did not do the trick either, after over an hour locked PCM finally started back up. Lucky we had sufficient charge as I am not sure if charging would have worked (the phone app showed "charging error" even though SoC was 100%, as we just finished AC charging).
PS> Visited 2 EA chargers this weekend too (had AC charging at all stops), each time there was one plug down but got a 350KW spot both times and there were other 150's open too. First one got me over 250KW and the second 160KW but that was probably because an ID.4 was sharing it with me (he was pulling 106KW - unaware he should have used one of the other 6 150KW stations which were available). So far I've driven over 4K miles on EA and for me it turns out EA is more reliable than Porsche PCM software
(2nd and 3rd PCM failures happened this weekend, I've had the car since February - I wonder if bad LTE has something to do with PCM crapping out).
Some background:
I was on a roadtrip this weekend, in the middle of a state park, and my PCM would not boot - stuck on the screen showing "Taycan", though the backup camera worked, HVAC and audio worked, even Carplay connected (but would not show). It was a particularly bad moment to lose navigation as it was dark, LTE coverage was poor so with Taycan's insulated glass the cell phones could not be used to navigation unless we stuck them out of the car window. Rebooted twice via engineering mode, no change. Leaving it locked for 20 minutes did not do the trick either, after over an hour locked PCM finally started back up. Lucky we had sufficient charge as I am not sure if charging would have worked (the phone app showed "charging error" even though SoC was 100%, as we just finished AC charging).
PS> Visited 2 EA chargers this weekend too (had AC charging at all stops), each time there was one plug down but got a 350KW spot both times and there were other 150's open too. First one got me over 250KW and the second 160KW but that was probably because an ID.4 was sharing it with me (he was pulling 106KW - unaware he should have used one of the other 6 150KW stations which were available). So far I've driven over 4K miles on EA and for me it turns out EA is more reliable than Porsche PCM software
(2nd and 3rd PCM failures happened this weekend, I've had the car since February - I wonder if bad LTE has something to do with PCM crapping out).Sponsored
