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mikefocke · 05-07-2010, 04:59 PM

A bad (corrosion or wear) connection to the chassis ground as opposed to the hot or plus side of a circuit.

ICE isn't a term I'm familiar with, care to spell it out.

One classic problem is a grounding strap that connects the alarm computer under the left hand seat to the chassis. Other causes require a seatbelt buckle receptacle replacement. Both are easily diagnosed by a knowledgeable Porsche mechanic with the proper Porsche equipment called a PST2 or PIWIS which allows a diagnostic computer to the OBD2 port under the dash.

When I replaced my battery on my Boxster, I replaced the grounding strap with one that was a little longer for a better fit with the new battery but there were no other wires directly connected to the battery.

05-07-2010, 04:59 PM	#5
mikefocke Registered User Join Date: Aug 2005 Location: Sanford NC Posts: 2,537	Grounding problem A bad (corrosion or wear) connection to the chassis ground as opposed to the hot or plus side of a circuit. ICE isn't a term I'm familiar with, care to spell it out. One classic problem is a grounding strap that connects the alarm computer under the left hand seat to the chassis. Other causes require a seatbelt buckle receptacle replacement. Both are easily diagnosed by a knowledgeable Porsche mechanic with the proper Porsche equipment called a PST2 or PIWIS which allows a diagnostic computer to the OBD2 port under the dash. When I replaced my battery on my Boxster, I replaced the grounding strap with one that was a little longer for a better fit with the new battery but there were no other wires directly connected to the battery.