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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Alarm problemViews : 1591 Replies : 9Users Viewing This Thread : |
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Nov 18th, 2017, 20:51 | #1 |
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Alarm problem
I have an annoying problem in that the car alarm sounds, hazzards flash etc for no apparent reason and the red light on the dash flashes very fast and stays on flashing very fast after I have turned the alarm off with the buttton. The only way it seems to get reset is with the ignition turned on and then it resets itself.
Does anyone have a solution for this or have any idea as to what could be the cause? Thanks |
Nov 18th, 2017, 21:19 | #2 | |
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Quote:
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Nov 21st, 2017, 09:28 | #3 |
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Alarm problem
Just switch it off.
During the summer months that's what I do as its very sensitive so a fly or spider will set it off. |
Nov 21st, 2017, 22:27 | #4 |
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So how would I go about doing that then?
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Nov 21st, 2017, 23:26 | #5 |
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Anything electrical in the car switching itself on periodically? Sat nav, cameras, etc? A sudden drop in voltage can trip the alarm.
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Nov 23rd, 2017, 20:08 | #6 |
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You might have hit on something there canis...I noticed that the metal sleeve in the cigarette lighter was loose from use with the phone adapter so may have been causing the problem, can only check during the day as I don't need it going on in the middle of the night!
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Nov 24th, 2017, 17:34 | #7 |
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Alarm problem
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Nov 24th, 2017, 18:02 | #8 |
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The fast flashing led is an error signal I think.
The most common problem is failure of the siren battery. What I do is lock it with the key as this doesn't arm the alarm. It is not ideal but easier than removing the alarm siren and finding/making a new battery.
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'04 V40 1.9D |
Nov 25th, 2017, 18:03 | #9 |
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The button on the dash is a temporary disconnection of sensors, not a solution button! I have been using the key to lock and it seems to be ok so think the cigarette lighter was at fault as it was loose.
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Nov 27th, 2017, 00:44 | #10 |
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