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2009 XC70 Alarm sounding off no reason V70-XC70

posted by  Chris Mullet on  Fri Dec 3 07:50 CST 2021
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

Could “possibly” be the notorious tailgate wiring issue. The harness tends to break down/short out where it passes through the LH tailgate hinge. That was the problem with my tailgate unlatched warning (along with a few other electrical issues like blown fuse for the fuel door, etc). It might also be causing your alarm to think someone is breaking into you rear windscreen. Maybe try pulling the fuse(s) that feed some those things that are tailgate-related or exercise the tailgate open and closed and see if that stops, or reduces, the alarm from going off.






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