Technical 2016 500x multiple warning lights

[HBCarl]

Recently the airbag, seat belt and park brake warning lights will sometimes all be on at the same time (with the seat belt chime dinging too) and sometimes all of them will be off. Maybe a bad ground. Maybe a bad connector (if there is one common to all of those faults). I have had a problem where the ground in one of the tail light assemblies corroded to the point the connector fell apart so maybe another similar fault is causing this problem. I've been looking and can't find a wiring diagram that covers these parts of that car, other than a $300 version from diyrepairmanuals.com. I don't mind paying for a wiring manual but I was hoping to not have to pay that much. Can someone help me in this regard? I've read that there are subscription services for manuals but all that I've found seem scammy. TIA

 

[2FiatsRon]

Recently the airbag, seat belt and park brake warning lights will sometimes all be on at the same time (with the seat belt chime dinging too) and sometimes all of them will be off. Maybe a bad ground. Maybe a bad connector (if there is one common to all of those faults). I have had a problem where the ground in one of the tail light assemblies corroded to the point the connector fell apart so maybe another similar fault is causing this problem. I've been looking and can't find a wiring diagram that covers these parts of that car, other than a $300 version from diyrepairmanuals.com. I don't mind paying for a wiring manual but I was hoping to not have to pay that much. Can someone help me in this regard? I've read that there are subscription services for manuals but all that I've found seem scammy. TIA

Often the warning lights coming on in a random fashion indicates battery problems. See is the stop start works it will only work if the battery is charged enough, if it doesn't work get the battery checked.

 

[maxMKE]

Often the warning lights coming on in a random fashion indicates battery problems. See is the stop start works it will only work if the battery is charged enough, if it doesn't work get the battery checked.

I had a similar issue with multiple warning lights that eventually lead to loss of power steering and car completely stopped running. After being towed to dealer, the problem went away. They figured it was a loose wire or circuit that is connected to the Radio Hub and any one fault could cause errors to any of the sensors leading to the hub. If the problem corrects itself as it did, they can't determine where it is coming from and I'd have to wait for it to happen again and not self correct y the time it got to the dealer in order to identify the actual fault. This seems like a terrible option for a car that could shut down at any moment while driving. Any thoughts? Could it be the battery?