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Re: service message for alarm system
The message is trying telling you that the system has a fault and most likely the control module has disabled the system. After the problem is fixed the message will clear. You can have the system tested by Volvo to see what part of the system has a fault, most likely they will charge about 1 hour labor time.
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I don't know who told you that , a semi- clogged catalytic will cause a low power issue an maybe a couple of DTC'S diagnostic trouble codes P0420 - P0430 ,Has nothing to do with the alarm system ! Do you mean Service vehicle soon or SERVICE ENGINE SOON ?
SERVICE VEHICLE SOON
The IPC illuminates the SERVICE VEHICLE SOON indicator in the message center when the PCM or the BCM detects certain non-emissions related malfunctions. The IPC receives a class 2 message from the PCM or from the BCM requesting illumination. What problem are you having with alarm system ? If you have a starting issue it's the Anti-Theft system not alarm system . The alarm would go off if you vehicle was broke into . I don't know what shop you took it to but did you try a dealer ?
Your vehicle requires to go to a service center and have the computer reset, it is just a service interval reminder warning usually based on your mileage and nothing to be alarmed about in most cases..
The only one you can reset is the "time for regular service" message.
To reset this, turn ignition off, hold the trip reset button down and turn key to position II. Keep holding the trip reset until you hear a ping noise and the orange triangle flashes. Immediately release the trip reset and turn the ignition off. When you start the car next, the message will be gone.
Other messages like "SRS Service required" or "Alarm system service required" can only be rest with a OBD code reader.
pull the lower dash panel above the drivers feet. on top of the steering column towards the passenger side there is a yellow 10ga wire coming out of the ignition switch. that is the start wire. some alarms require that wire to be cut in two and wired separately into the alarm. Look to see if that is the case. Also there is a orange casing on two wires coming out of the column for your anti theft. look to see if they cut into those wires too. If it has remote start they could have installed a box or a resister somewhere inline.
1.Get in the car
2. Closw the door
3. Disable the alarm sensor
4. Activate the alarm
5. Wait 30-35 sec
6. Get out of the car
7. Stop the alaram
8. Get in the car
9. Put the key on the position II, without starting the engine
10. Push the button READ
The alarm led must blink. Then you alarm is reset.
Sorry but my english is not very good, i'm from Romania, i hope you understand