Other XC90 Problem: - Infotainment issue

cornerwaysuk · Oct 26th, 2023, 17:17

Hi All,
I have a 2005 XC90 2.5T lpg converted. I have owned this car for 13 years and have had usual issues but generally its a great car.
I havnt used the car for a couple of years but have MOTd it and kept it running.
When i stopped using it the infotainment had stopped working, like no power at all, this coupled with headlight not working and parking sensors not working. Sorted the headlight out by by bypassing the cars system.
Left the other things until yesterday when i took out the infotainment system and checked the optical cables which appear to be OK. I put it all back and amazingly the unit now works! The CD works radio etc.....however there is an awful buzzing that drowns out any other sound. The parking sensors also dont work. I noticed that the sound and in fact all sound comes from the rear speakers only. I have a couple of videos showing this.
The question is.... Has anyone any ideas on what causes this and how can it be rectified. I have also checked and removed the amplifier which seems to work fine.
As always any help or ideas greatly received.

john langrick · Oct 28th, 2023, 09:14

Hi

I would suspect the icm, information control module) this is a small box which has the display in the radio. This is very subject to excessive heat and will certainly have some dry solder joints.

My first call would be to either take or post the unit (including the fascia) to Volvo diagnostics to check it out.

If faulty, Volvo diagnosticscs m will give a lifetime warranty for the repair.

Or take a risk by buying one on the 'bay'. If no change then you could sell it again.
Hop this helps and let us know how you get on.

John l

SwissXC90 · Oct 28th, 2023, 10:40

Be aware that the parking sensors sound through the stereo speakers. So if the amplifier and speakers are not working, you will not get any parking sensor beeps.

cornerwaysuk · Oct 30th, 2023, 20:47

Thanks for that, the sensors arnt working at all, its not the sound there is a message stating the need a service but they dont work.

cornerwaysuk · Oct 30th, 2023, 20:48

I have used volvo diagnostics previously so I may look at sending the module to them. Thanks

Oct 26th, 2023, 17:17	#1
cornerwaysuk Cornerwaysuk Last Online: Jan 4th, 2024 17:21 Join Date: Sep 2007 Location: Manchester View Photos By: cornerwaysuk	Infotainment issue Hi All, I have a 2005 XC90 2.5T lpg converted. I have owned this car for 13 years and have had usual issues but generally its a great car. I havnt used the car for a couple of years but have MOTd it and kept it running. When i stopped using it the infotainment had stopped working, like no power at all, this coupled with headlight not working and parking sensors not working. Sorted the headlight out by by bypassing the cars system. Left the other things until yesterday when i took out the infotainment system and checked the optical cables which appear to be OK. I put it all back and amazingly the unit now works! The CD works radio etc.....however there is an awful buzzing that drowns out any other sound. The parking sensors also dont work. I noticed that the sound and in fact all sound comes from the rear speakers only. I have a couple of videos showing this. The question is.... Has anyone any ideas on what causes this and how can it be rectified. I have also checked and removed the amplifier which seems to work fine. As always any help or ideas greatly received.

Oct 28th, 2023, 10:40	#3
SwissXC90 Premier Member Last Online: Mar 20th, 2024 18:26 Join Date: Jan 2016 Location: Cross Country	Be aware that the parking sensors sound through the stereo speakers. So if the amplifier and speakers are not working, you will not get any parking sensor beeps. __________________ XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.

Oct 28th, 2023, 09:14	#2
john langrick Master Member Last Online: Today 10:10 Join Date: Dec 2016 Location: Southend on sea	Hi I would suspect the icm, information control module) this is a small box which has the display in the radio. This is very subject to excessive heat and will certainly have some dry solder joints. My first call would be to either take or post the unit (including the fascia) to Volvo diagnostics to check it out. If faulty, Volvo diagnosticscs m will give a lifetime warranty for the repair. Or take a risk by buying one on the 'bay'. If no change then you could sell it again. Hop this helps and let us know how you get on. John l

Oct 30th, 2023, 20:47	#4
cornerwaysuk Cornerwaysuk Last Online: Jan 4th, 2024 17:21 Join Date: Sep 2007 Location: Manchester View Photos By: cornerwaysuk	Thanks for that, the sensors arnt working at all, its not the sound there is a message stating the need a service but they dont work.

Oct 30th, 2023, 20:48	#5
cornerwaysuk Cornerwaysuk Last Online: Jan 4th, 2024 17:21 Join Date: Sep 2007 Location: Manchester View Photos By: cornerwaysuk	I have used volvo diagnostics previously so I may look at sending the module to them. Thanks

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