Ошибка alarm system service required

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The Volvo Alarm system required is almost always caused by a weak or bad battery in the alarm siren module. When this happens, the alarm system in your Volvo goes off. 

The most common indicator of a problem in the alarm siren would be the displayed error message on your dashboard accompanied by a continuous alarm sound. Both signs will likely lead to a quicker battery drain in your Volvo. 

You may fix this issue temporarily by removing the alarm fuse. A more permanent fix would be replacing the entire Alarm siren unit or swapping the weak/bad battery for a stronger one.

This article would provide you with more information on what the Volvo Alarm system required entails, what the causes are, and how you can effortlessly fix this issue.

Before we can properly understand the error message, ‘Volvo Alarm system required,’ let’s know how the Volvo Alarm system works.

The Volvo alarm system operates with the help of sensors strategically placed at different locations in your car. This system may include; door sensors, motion sensors, glass monitoring sensors, etc. These systems work together to detect movements around the vehicle and alert passers-by (through a high pitch sound) in case of a break-in or theft. 

Now, the Volvo Alarm system required message shown on your dashboard points to an issue with the Alarm system in your car. Luckily, the common culprit for this issue is your Siren module or unit. Whenever the siren module/unit components become faulty, the Volvo Alarm system required message shows up on your dashboard. 

This message will remain until the faulty component is repaired or replaced. You will also notice a constant alarm siren that cannot be turned off. 

Although there is no immediate impact on your Volvo, the never-ending siren can cause enough inconvenience when driving.

Causes of Volvo Alarm System Service Required

The most common cause of Volvo alarm system service required is a failed battery in the alarm siren module. This issue is identified through the UEM-0004 fault code.  

Other causes of this issue include a faulty sensor, key fob issues, wiring issues, etc. However, a defective Alarm siren module is more time than not the source of this Volvo alarm system service problem. The Alarm siren module is located behind the arch wheel linen on the driver’s side of your car. It contains a module board attached to a battery.

The battery should have a lifespan of about ten years. If the battery becomes weak or bad, the power supply to the alarm system is cut off, resulting in this error message. 

The constant alarm siren that goes off after this error message appears on your dashboard can easily cause a battery drain. 

You may fix this issue by replacing the entire alarm siren module unit or attaching a new battery to the unit. Whichever method you use depends on the level of damage caused to the module board by the battery.

Occasionally you may encounter some difficulty identifying the cause of the Volvo alarm system service required. You can seek professional help to diagnose and fix this issue properly.

How To Fix Volvo Alarm System Service Required

There are two ways you can fix the alarm system service required problem. You may choose to replace the entire alarm siren unit with a new unit or replace just the battery inside the siren module. 

The former step is the most expensive of the two. You need to purchase a complete alarm siren unit, which could cost about $200. However, the procedure for replacing the old unit is very quick and straightforward.

Conversely, changing just the battery is cheap, but the procedure is a bit tasking and might need more care. Furthermore, this procedure can only be considered if the bad battery is yet to corrode the siren circuit board.

Here are some tools and equipment you’ll need:

1. 19-millimeter socket

2. A ratchet

3. 10-millimeter socket (fender remover)

4. 5-millimeter drill (rivet remover)

5. Saw/grinder (if you plan just to replace the battery)

6. M6 10-millimeter bolt

7. Flat bit/screwdriver 

8. A new alarm siren unit (for complete replacement)

9. AA batteries or button cells batteries around 7.4 volts (for battery replacement)

Procedure to replace the entire Alarm module 

Step 1: Jack your car and locate the Alarm siren module. You will need to remove the wheels and fender liner to locate the Alarm siren module.

Step 2:  Carefully remove the old alarm module and replace it with a new one.

Step 3:  Reassemble the fender liner and replace your wheels.

Step 4: Lower your vehicle and test the newly installed alarm siren.

Procedure to fix the battery

Step 1: Take out the old alarm module and remove the alarm unit from its metal security case. 

Step 2: Carefully open the alarm unit with a saw or grinder. You need to start cutting the unit from slightly below the bottom gray plastic. 

Step 3: Disconnect the old battery for the new one. A soldering tool will be used to attach the wires together.

Step 4: Attach the new battery to the circuit board. Most aa batteries take up more space. You may need to break the battery chamber/ cage to accommodate the bigger battery.

Step 4: Re-assemble the alarm unit and hold it with tape. Next, you re-attach the unit to the security chamber. Then you place the alarm module back in position.

Step 5: Refit the fender line and the wheels.

Step 6: Finally, you should test the alarm siren system to see if it works perfectly.

Conclusion

Changing an alarm siren module in your Volvo is not really a DIY-friendly procedure. This situation is particular for people who do not have a flair for the screwing and unscrewing process. The procedure is, however, straightforward for those who know their way around.

The bottom line here is that you can properly fix the Volvo alarm system service-required error message. It doesn’t really matter if you do it yourself or you hire the services of a professional automobile technician.

When this error message is fixed, you benefit from improved battery life and an end to the constant siren sound from your alarm.

In all cases, you stand to enjoy the benefit of a more comfortable ride and a potentially secured vehicle.

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Volvos made in the early ’00s are generally very reliable modes of transport when properly maintained. Few things regularly go wrong on them, though there is an issue that affects nearly every car made in that era. The alarm siren Volvo installed in those models regularly goes bad and leaves owners with an «Alarm System Service Required» message on the dashboard, and an alarm siren that won’t shut off. Whether you refer to it as the “siren of death” like our former Volvo techs do, or not, your 1999+ Volvo S60, S80, or V70 will likely be affected. 

 Replacing the siren module is straightforward and should take care of the error message you’re encountering. The module is encased in a riveted metal box meant to prevent would-be thieves from damaging the module to silence it and is mounted just ahead of the passenger’s side front wheel, behind the fender liner. Inside of the siren is a rechargeable battery that, by now, has likely failed and isn’t able to hold a charge. Over time, that battery will leak and destroy the module’s printed circuit board, leaving you with an alarm siren that won’t shut off.

Symptoms Of A Failed Siren Module Battery

• A sounding alarm that doesn’t shut off with the key in the ignition
• UEM-0004 Siren Communication Fault 

There aren’t any hidden tell-tale signs that a failed battery is about to cause a seemingly never-ending alarm siren. Once it does occur, there should be a warning message that appears on the LCD screen in the lower left-hand corner of the instrument cluster stating “Alarm System Service Required.” Checking the code with a scan tool could bring up a number of codes, but UEM-0004 is specific to this battery issue. 

How Much Will It Cost To Replace The Alarm Siren Module In My Volvo?

Replacing the alarm siren in your P2 Volvo is the only way to eliminate the issues caused by the leaking battery. A new alarm siren unit isn’t the least expensive piece around at about $250, but it is a guaranteed fix to the constant alarm. Volvo also recommends that you use a new mounting bolt during installation, and that’ll run you another few bucks. 

How Long Will It Take To Replace The Alarm Siren Module In My Volvo?

The alarm siren is tucked behind the passenger’s side headlight behind the plastic fender lining. You’ll need to drill out the rivets that Volvo chose to secure the liner to the fender and bumper, but that’s about the only involved part of the job. Set aside an hour or two for the job, start to finish.

Parts Required To Replace A Volvo Alarm Siren Module:

• Volvo Burglar Alarm Siren
• Alarm Siren Mounting Screw
• Volvo Rivets (x7)

Tools Required To Replace The Alarm Siren In A P2 Volvo S60:

• 10mm Socket
• 19mm Socket 
• T40 Torx Bit Socket
• Ratchet
• Drill
• Rivet Gun
• Hammer
• Punch

How To Replace Your Volvo Alarm Siren Module:

Before replacement, ensure the alarm system fuse on the CEM under the steering wheel is not blown. If it is blown, replace it, then continue with the repair if necessary.

Step 1: Gain Access To The Siren Module

The siren module sits just ahead of the fender liner in the passenger’s side wheel well. Start the job by jacking up the front of the vehicle and placing it securely on jack stands. Then use a 19mm socket to remove the wheel.

Then turn your attention to the seven rivets that secure the fender liner to the bumper and fender. Use a drill to remove the center of the rivets before pulling them out with some pliers. After that, use a 10mm socket to remove the three plastic nuts securing the liner to the inner chassis.

Pull the fender liner out after removing the nuts. 

Step 2: Replace The Siren Module

The siren module is secured to the chassis via a single bolt. Locate the module and unplug it before turning your attention towards the bolt. Unfortunately, Volvo used a single shear-head bolt, so there isn’t a way to remove it with a socket or bit. 

Instead, you’ll need to use a punch and hammer to rotate the smooth head to the left, or you can cut a slot in it with a Dremel tool and then use a flathead screwdriver to back it out. Both processes can be a bit tricky, so don’t get discouraged. 

Pull the old unit out and fit the new one into place. Thread in the new bolt by hand before using a T40 bit socket to tighten the bolt and snap the head off. Then plug in the new controller and test out its new functionality. Move on to reassembly after the new module is checked.

Step 3: Refit The Fender Liner & Wheel

Grab the fender liner and fit it back into position in the car. Then, thread on the three 10mm nuts Volvo used to secure the liner to the chassis. Don’t get them tight just yet as you might need to adjust the liner when installing the rivets. After that grab your rivet gun and resecure the fender liner to the fender and bumper. 

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.

We hope that this tutorial was informational and helpful. If you have any questions about fixing the Volvo Alarm System Service Required message, ask in the comments section below. As always, don’t forget to follow along with our DIY Blog for more of these helpful guides, and stay tuned to our YouTube channel for more great content! Let us know in the comments below if you have any questions or concerns. Happy wrenching!