When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Thanks in advance. And I promise I've googled and RTFM.
Question: How does one perform a hard reset on the PCM 6.0?
I am new to 992 but not to Porsche. In my 991.2 I would periodically need to hard restart the PCM when it would misbehave (e.g. not connect to ACP). In that car one holds down the volume **** for 10-15 seconds with the car in park. I can't figure out how to perform the same operation on the PCM 6.0. Again, thanks for the help.
For PCM 5.0 (2020-2021) and I think 2022 PCM 6.0. Have done this on my PCM 5.0 on my 2020 992 C4S (when I traded it in). Have not done this on my 2022 Targa PCM 6.0 - but believe it has the same option when I was fiddling around setting it up.
Go into settings (Gear shaped icon on your PCM): Scroll to the last setting where it says factory reset. Select that. It will ask you to erase all person content confirm or cancel. Select confirm. It will do a full reset and reboot.
Of course you have to set up again.
I think the other would be to fully disconnect battery for several minutes, reconnect. This should not reset your personal info but will provide a hard reset (like unplugging your PC while running).
I think that turning off the car and then turning it back on is the easiest way to "reboot" the PCM. The car itself restarts quickly so you can do this even at a brief stop.
Outside my post above (reset/reboot) or disconnecting the battery, I do not know of another way to do a hard reboot. On the Taycan and other ones there are instructions, but they do not work on the 9992.
Is it possible to see which version of PCM is loaded?
If so how do I display / find the version number ?
TIA
2020/2021 will be PCM 5.x
2022 will be PCM 6.x
I am not in my car, but I think on the settings in the PCM - there is an info button in the settings then System (iirc) that will tell you specifically what version exactly.
Last edited by Richard_Wallace; 04-07-2022 at 11:17 AM.
After looking at the PCM 6.0 reboot procedure HERE I tried it on the PCM 5. Sure enough, it works.
After pressing for a second or two as depicted, the screen goes blank for about 45 seconds, then boots to Engineering Mode
Don't panic when the touchscreen doesn’t work in Engineering Mode (like I did). Scroll and select using the Rotary Push Button on the center console next to the Volume Control.
Unfortunately, you must enter Engineering Mode from the Home Screen. It does not work from any other screen.
After looking at the PCM 6.0 reboot procedure HERE I tried it on the PCM 5. Sure enough, it works.
After pressing for a second or two as depicted, the screen goes blank for about 45 seconds, then boots to Engineering Mode
Don't panic when the touchscreen doesn’t work in Engineering Mode (like I did). Scroll and select using the Rotary Push Button on the center console next to the Volume Control.
Unfortunately, you must enter Engineering Mode from the Home Screen. It does not work from any other screen.
Thanks for posting this - I had tried to do this earlier but couldn't get it to work -I finally figured out I had my fingers too close together (both on the time) - with one the time and one to the left of it, worked great. I have newer version of PCM (3776, colored icons, etc) so the phone isn't listed in the same place. Also, in 3776 touchscreen works - I initially used the dial (as noted above) and that scrolls but when I pressed the dial, it wouldn't select the option - I was worried I might have bricked the PCM but fortunately touchscreen worked.
An update to this.
I needed to reboot my PCM on my MY22 992 since it was acting up not connecting to my iPhone.
I got into engineering mode just like it’s documented here. The scroll wheel did allow me to choose between the different menu options, however, pressing it, did not activate the menu item. Even the steering wheel volume control was able to select a menu item, but pressing it as well did not activate it. As a result, I was faced with an unresponsive PCM, and when I turn the car off and locked it, the screen was still on. I was looking at the possibility of running down my battery. However, I discovered that by lightly tapping the PCM screen with the back of my knuckle, a little bit harder than a normal finger press, actually did activate whatever menu item was selected. As such, I was able to highlight the reboot option, knuckle-rap on the PCM screen, and then reboot into normal mode. All seems well now.
M
Yes, PCM 6 is slightly different. The PCM touchscreen remains responsive so that you can select “Reboot to normal mode” and confirm with a finger press.
Only the PCM 5 requires the rotary **** selection and button press to select.
One other caution: During the reboot, do not engage Reverse. The Park Assist rear camera (or surround view, if equipped) will display on the PCM screen. This will interrupt the reboot and freeze the system. (I learned this the hard way on my PCM 5).
Yes, PCM 6 is slightly different. The PCM touchscreen remains responsive so that you can select “Reboot to normal mode” and confirm with a finger press.
Only the PCM 5 requires the rotary **** selection and button press to select.
One other caution: During the reboot, do not engage Reverse. The Park Assist rear camera (or surround view, if equipped) will display on the PCM screen. This will interrupt the reboot and freeze the system. (I learned this the hard way on my PCM 5).
I actually DROVE in reverse, although this was when I was still in the menu selection screen. The rear camera didn’t come on and no lock up, fyi.
BTW if I have PCM 6, why aren’t my icons coloured?
M
04-07-2022, 07:51 AM
PCM 6.0 Hard Reset?
