Why does my Volvo S40 siren keep going off?

Why does my Volvo S40 siren keep going off?

2005 Volvo S40 with about 100k kms. Every once in a while, usually after I’ve just parked the car, exited, and locked it, the alarm will go off. I understand there is a common issue with these vehicles. The siren module has a backup battery, so the alarm can sound even if the main battery is disconnected.

Are there any problems with the Volvo S40?

Check out our Volvo S40 overview to see the most problematic years, worst problems and most recently reported complaints with the S40.

Why does my Volvo S40 alarm keep sounding?

The siren module has a backup battery, so the alarm can sound even if the main battery is disconnected. I’ve pulled the module out and cut it open, expecting to find an old, dead, leaky battery that’s destroyed the circuit board inside. It turned out to be in great shape.

How did I Fix my Volvo S40 battery problem?

Towed home. Removed ignition key (was inserted to ensure steering was unlocked) but radiator cooling fan remained on (engine hadn’t run for 2. 5 hours by that time). Pulled a fuse under the hood to stop it dumping the battery.

What’s the problem with my 1993 Volvo 960?

I have a 1993 Volvo 960 Wagon and was experiencing the same issues as “iceman”. MarcinWeho gave a great explanation of the problem and I ran through the scenario he described. It was a temporary fix as the next day the same problem came up.

What should I do if my Volvo alarm goes off?

As you say the alarm is still triggered in reduced mode it points towards the doors, tailgate or bonnet. I would put it in this reduced mode then lock the vehicle whilst sat in it monitoring the status’ of the doors and catches. Usually you will see the culprit door flicking between open and closed.

When did I Buy my 2007 Volvo S40?

I purchased my 2007 Volvo s40 in late 2007. The vehicle had less than 5,000 miles and was in perfect condition. I have always been an import buyer yet never owning a Volvo I was a little skeptical. The i5 provides the car with more than adequate power. The acceleration was great and I never had any problem overtaking other vehicles.

Why is the battery on my Volvo S40 black?

On cutting the battery wires, I found the metal strands of the ground (which was suffering from the corrosion) appeared black as if they had been burnt or melted into the protective sheathing. I’ve replaced the battery with a similar battery of the same voltage and cell type, and the problems with the alarm have yet to return.

Where is the alarm system required on a Volvo S60?

When faced with the “Alarm System Service Required” message on the dashboard of a 2000+ Volvo S60, S80, or V70, the problem is almost always the siren module, a device located behind the front bumper cover on the on the passenger side of the vehicle, just behind the wheel well.

How to replace the siren module on a Volvo?

How To Replace The Siren Module. Begin by removing the inner fender liner to gain access to the siren. Turn the front wheels all the way to the right or jack up the front of the vehicle and remove the passenger front wheel for easier access. Drill out the rivets from the front edge of the plastic inner fender liner.

How much does it cost to repair a p0075 Volvo?

Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost of diagnosing the P0075 VOLVO code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Can a car siren work if the battery is disconnected?

The siren module has a backup battery, so the alarm can sound even if the main battery is disconnected. I’ve pulled the module out and cut it open, expecting to find an old, dead, leaky battery that’s destroyed the circuit board inside. It turned out to be in great shape. While I had the siren module out, I’ve continued to drive the car.

Where does the alarm go in a Volvo S40?

As you say the alarm is still triggered in reduced mode it points towards the doors, tailgate or bonnet. I would put it in this reduced mode then lock the vehicle whilst sat in it monitoring the status’ of the doors and catches.

Do you need diagnostic scanner for Volvo S40?

It doesn’t seem clear from your question. You need a good diagnostic scanner, a generic OBDII will not be good enough. You need a scan tool that will communicate with the body and alarm system and give you live data. As you say the alarm is still triggered in reduced mode it points towards the doors, tailgate or bonnet.

How to fix the volvo’alarm system service required?

With the new siren installed and the fender-liner riveted back in, a simple VIDA software download may need to be performed by an independent Volvo technician or dealership. This will pair the siren with the car and eliminate any lingering errors.

Why does my car alarm keep going off?

Every once in a while, usually after I’ve just parked the car, exited, and locked it, the alarm will go off. I understand there is a common issue with these vehicles. The siren module has a backup battery, so the alarm can sound even if the main battery is disconnected.