door locks and alarm goes off on its own

2002 PONTIAC BONNEVILLE
14,000 MILES
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.D1801
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2002 Pontiac Bonneville Electrical Problems, door locks work on there own, alarm sounds on own, speedo sometimes reads 120 mph, when going 60
Dec 7, 2011 at 10:10 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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