Hello I have a 2015 macan turbo with 92k miles that I barely drive any more. I live in northeast where it’s been cold and over the weekend I drove to the gas station. On the way home when I turned on the car I got an alert saying low battery - leave running for extended time. The PCM was black/off and despite driving home and then driving for an hour and a half today it still won’t turn on.
Long story short: battery has never been replaced. Do you think pcm not working due to low battery or is something else wrong like a fuse. I haven’t gotten the low battery warning since that one time and the car is running fine. Thanks!
PCM won’t turn on
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Mine was laid up for a couple of months when I had an Op and the battery went flat.
The Porsche Assist started the car but it needed to go to the OPC to have the system reset
The Porsche Assist started the car but it needed to go to the OPC to have the system reset
Col
Macan Turbo
Air, 20” wheels, ACC, Pano, SurCam, 14w, LEDs, PS+, Int Light Pack, Heated seats and Steering, spare wheel, SC, Privacy glass, PDK gear, SD mirrors, Met Black, rear airbags
Macan Turbo
Air, 20” wheels, ACC, Pano, SurCam, 14w, LEDs, PS+, Int Light Pack, Heated seats and Steering, spare wheel, SC, Privacy glass, PDK gear, SD mirrors, Met Black, rear airbags
Do you have any of the other functions, such as "Stop/Start", Comfort Access and Coasting? Given the low battery warning I would expect all of those to be paused. As the battery voltage drops, the management system will ditch virtually all systems one by one in order to retain the ability to start the car.
As has already been said, try a reconditioning cycle with a CTEK or similar charger if you can.
As has already been said, try a reconditioning cycle with a CTEK or similar charger if you can.
Peter
Current: 2020 Carmine Red GTS http://www.porsche-code.com/PMST9ZI9
Gone- 2015 Sapphire Blue Diesel
Gone -2013 Cayenne Diesel
Current: 2020 Carmine Red GTS http://www.porsche-code.com/PMST9ZI9
Gone- 2015 Sapphire Blue Diesel
Gone -2013 Cayenne Diesel