2002 Jaguar XK8 • 90,000 miles

2002 Jaguar XK8 V8 naturally aspirated w 90000 miles. A.T. &Amp; typical equipment.
Electronic/computer? Problem.
Bought car six months ago & drove it home from Fla. ( To Seattle). Car runs great.
Last week I started car & drove away. Immediately alarm went off for several seconds then stopped. This happened several times in just a few blocks. Turned around & drove back home as alarm continued to malfunction. Parked, shut off & removed key. Waited a few minutes & tried again. Inserted key & rotated but did not engage starter. Alarm went off for several seconds & stopped. Started car & experienced same malfunction.
Am at a loss as to cause. I think car is equipped with inertia sensor. Not sure if this could be involved.
December 2, 2012.

Check out the related content below while we wait for the question to be answered by a professional mechanic.