• 1) The Car Alarm Keeps Going Off When I Open the Door Possible Cause.
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They are interrelated with sensors, battery, and overall setup of the car.

It could also be from unevenly closed doors.

The rain can often trigger a Civic alarm.

Apr 19, 2010 · alarm going off I just took my BMW to Bmw dealer because my car alarm keeps going off for no reason. There are several reasons why car alarms keep going off randomly.

The rain can often trigger a Civic alarm.

Then disconnect your main battery terminal for one minute.

Honda Civic alarm going off in rain. Mar 6, 2023 · If your car alarm has gone off in the middle of the night, there are a few easy things you can do to silence the alarm sound immediately. .

Firmly close each door.

Most modern vehicles use keyless-go systems with key fobs in the key that sends a radio signal to the receiver in the car. . .

First, try replacing the battery in the key fob if you haven’t done so recently. It is part of the tailgate locking motor.

Spray WD-40 or a similar lubricant on each hinge and door latch.

Sep 2, 2012 · Question type: Maintenance & Repair.

. For do-it-yourself cleaning, use a mild automotive-specific detergent (so you won't damage your car's paint).

Check each switch for power and see which door switch does not have power on the ground side when activating the switch. .

Due to its setup, door lock sensors can misbehave during the rainy season, when water could slip into door lock actuator.
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It can also be.

While an alarm or ECU reset can fix most issues, others may require professional services.

. Bumps or vibrations can trigger your car alarm. Mar 14, 2023 · The most common reasons that a car alarm would keep going off are: Faulty hood latch or door sensors.

What seem to happen is a door sensor / switch has failed. . If your alarm goes off when you open the door, your lock sensor may not be functioning correctly. Are you sure its completely shutting or not. You are also correct - to jumper the hood switch connector disables the alarm system.

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There might also be a fault in your car’s computer. The door lock sensor is worked by using 2 circuits such as closed circuit and open.

It is part of the tailgate locking motor.

If its an Astra (G) it will probably be the power sounder, it has its own power source from batteries inside the sealed unit located behind the wheel arch on passenger side IIRC , the batteries wear out and set the alarm off randomly ,should be around ££120-140 to replace form vxl.

If you suspect the key fob might be the problem, try replacing the key fob battery and see.

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