I just installed a Pioneer AVIC Z150 in my '11 Cayman (base, with the CDR-30) about 3 weeks ago. Seemed to work fine initially, though it had the iPhone 5s/Pandora connectivity issues. Updated to latest Pioneer firmware and now after driving about 20 minutes it keeps restarting, and after several restarts it often shuts down for several minutes. No message on the screen, and it always starts up where it left off. I'm typically listening to Pandora when it happens, but it still restarts even after switching to FM. It's wintertime and I have the heater on, but even with it blowing only to the windshield (and not all that hot either) it did the on-off-on-off-on-off thing this morning. I pulled over and restarted the car and it came on like normal, then about 20 minutes later (with heater not blasting at all) it went into its restart loops. It doesn't seem like overheating conditions in the cabin (outside temp ~40F).
I'm driving the OEM 6" door speakers directly from the Z150, I don't yet have an amp nor rear speakers/subwoofer. I used EuroMotorspeed's excellent kit. My iPhone 5s is always plugged in when the restart happens.
Any thoughts? Any suggested troubleshooting? Any potential cures? I did post also on AVIC411.
try re installing the update...RE download and re install.. it happened to me on an older model...the cpu had and issue of missing bits in the install..
2cents
Lemon
I have the same system on a 06'. I installed last August. I have never had any of those problems. I use Pandora etc. also. It does sound like a firmware issue. I also have not updated mine though.
I started this thread a long time ago and just now realized I never posted my resolution. I updated a thread on Avic411 but not hear...sorry.
The fix was a very weird/unusual/easy/cheap one...the "ignition on" signal fuse in my fuse panel had a mechanical (not thermal) break, but the elements were touching when the car interior was cold (it was wintertime). When the interior heated up the elements slightly separated, triggering the shutdown as though the car turned off. Just a slight movement of the fuse elements would cause that circuit to open-close. Once I pulled the fuse and examined it closely to see the mechanical break (rather than just cursory check for a non-continuous element from a thermal event), the cause and fix were obvious. Replaced it and its been 100% reliable.