986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - ABS off and PSM light on after parking for a day, what could it be?

rondocap · 01-09-2013, 06:21 PM

So for a few times now, when I had the car parked for a day or so, and I turn it on, the PSM and ABS off light both come on.

They come on as soon as I release the parking brake. I noticed that the car has to be standing or about a day or so, and sometimes it does appear to happen more if the car is on a hill or there is a lot of moisture and humidity outside. Not sure if that is connected.

From searching the forum, I narrowed it down to possibly the brake switch light that may be bad, or possibly the alternator? But most likely the brake switch light. Where is this and how do I get to it if it is?

Anyone else have any idea what it could be if not that?

01-09-2013, 06:21 PM	#1
rondocap Registered User Join Date: Dec 2012 Location: NY/NJ Posts: 195	ABS off and PSM light on after parking for a day, what could it be? So for a few times now, when I had the car parked for a day or so, and I turn it on, the PSM and ABS off light both come on. They come on as soon as I release the parking brake. I noticed that the car has to be standing or about a day or so, and sometimes it does appear to happen more if the car is on a hill or there is a lot of moisture and humidity outside. Not sure if that is connected. From searching the forum, I narrowed it down to possibly the brake switch light that may be bad, or possibly the alternator? But most likely the brake switch light. Where is this and how do I get to it if it is? Anyone else have any idea what it could be if not that?