Other XC90 Problem: - Radio, interior lights and parktronic have failed

sal960x · Oct 26th, 2009, 10:18

Hi

Can anybody help me, my radio, interior lights and parktronic have failed, just completely dead, any ideas what this could be??

wimorrison · Oct 26th, 2009, 10:56

Is there a fuse that feeds all of these items that may have failed?

Seems to be that something common to all is required

sal960x · Oct 26th, 2009, 11:09

I checked the fuses yesterday and they all seemed fine, however I was expecting the fuse to appear burnt out or cracked and now Ive been told thats not always the case (i.e sometimes the fuse is gone but it still looks ok visually) so I check again tonight

wimorrison · Oct 26th, 2009, 11:52

Quote:

Originally Posted by sal960x

... the fuse to appear burnt out or cracked ...

You are so correct - in the old days they would have gone black but the modern card ones can be difficult to confirm. Generally I find that holding the card up to the light (sky) and looking through will let you see if the fuse is still intact. I ave had to use a multimeter on some of the darker colours as I haven't been able to work out if they are OK or not

pdrvolvo · Oct 27th, 2009, 15:15

its possible just one of these things is faulty and is affecting the others.the number of things that are electronically joined so to speak is very high.the modern 4x4 is a very complicated animal.the radio for instance affects a number of other items.also the removal of fuses to check them can cause the SRS warning light to come on.all very annoying.

peter.

RoscoMac · Oct 27th, 2009, 22:09

Doesn't sound good I'm afraid. I had similar problem last year, where the radio & park sensors packed in (interior lights still worked though).

Solution for me was a new Electronic Control MOdule, which costs about £750!

Sorry! Hope it isn't for you!

Ross.

sal960x · Oct 28th, 2009, 11:30

I have taken it to the garage and they said it needs a new head unit (is that the same thing?)

RoscoMac · Oct 29th, 2009, 12:35

Might be worth clarifying which part they are replacing, as I don't imagine that a faulty "head" unit would cause park sensors & lights to stop working.

R.

pdrvolvo · Oct 29th, 2009, 18:21

Quote:

Originally Posted by sal960x

I have taken it to the garage and they said it needs a new head unit (is that the same thing?)

what do they mean by a "head unit".

peter.

Clan · Oct 29th, 2009, 19:07

check fuse 5 in the CEM which is above the panel over your right foot .. ( upper of the two long rows third along from the left on upper row)that feeds the whole hi-fi system ... if you want to ge deeper remove the centre radio panel and see if there is a live feed on the purple wire feeding the display itself ...

there is no such thing as a head unit on an XC90 ,
you have a ICM ( the control unit and display ) an AUD ( the amplifier ) the mmm ( the cd player ) the ATM ( aerial and radio tuner ) all linked with fibre optics ..

I would get a thorough report on what isnt working and why before you go ahead ..

Oct 26th, 2009, 10:18	#1
sal960x New Member Last Online: Dec 23rd, 2009 11:23 Join Date: Oct 2009 Location: nantwich	Radio, interior lights and parktronic have failed Hi Can anybody help me, my radio, interior lights and parktronic have failed, just completely dead, any ideas what this could be??

Oct 27th, 2009, 15:15	#5
pdrvolvo Master Member Last Online: Oct 4th, 2012 19:08 Join Date: Mar 2008 Location: middlewich	its possible just one of these things is faulty and is affecting the others.the number of things that are electronically joined so to speak is very high.the modern 4x4 is a very complicated animal.the radio for instance affects a number of other items.also the removal of fuses to check them can cause the SRS warning light to come on.all very annoying. peter. __________________ 244DL-1976/244DL-1983/740GL-1986/940GL-1992/850GLT-1995/V70-1998/S8O-2000/V70-2005/XC90T6 Exec.-2004.

Oct 29th, 2009, 19:07	#10
Clan Experienced Member Last Online: Today 11:03 Join Date: Jun 2007 Location: L/H side	check fuse 5 in the CEM which is above the panel over your right foot .. ( upper of the two long rows third along from the left on upper row)that feeds the whole hi-fi system ... if you want to ge deeper remove the centre radio panel and see if there is a live feed on the purple wire feeding the display itself ... there is no such thing as a head unit on an XC90 , you have a ICM ( the control unit and display ) an AUD ( the amplifier ) the mmm ( the cd player ) the ATM ( aerial and radio tuner ) all linked with fibre optics .. I would get a thorough report on what isnt working and why before you go ahead .. __________________ My comments are only based on my opinions and vast experience .

Oct 26th, 2009, 10:56	#2
wimorrison Grumpy Old Sod Last Online: Dec 14th, 2021 15:39 Join Date: Jan 2009 Location: Hampshire, nee Scotland	Is there a fuse that feeds all of these items that may have failed? Seems to be that something common to all is required

Oct 26th, 2009, 11:09	#3
sal960x New Member Last Online: Dec 23rd, 2009 11:23 Join Date: Oct 2009 Location: nantwich	I checked the fuses yesterday and they all seemed fine, however I was expecting the fuse to appear burnt out or cracked and now Ive been told thats not always the case (i.e sometimes the fuse is gone but it still looks ok visually) so I check again tonight

Oct 27th, 2009, 22:09	#6
RoscoMac Scottish Section Chair Last Online: Jun 21st, 2024 00:08 Join Date: Dec 2002 Location: Ayrshire View Photos By: RoscoMac	Doesn't sound good I'm afraid. I had similar problem last year, where the radio & park sensors packed in (interior lights still worked though). Solution for me was a new Electronic Control MOdule, which costs about £750! Sorry! Hope it isn't for you! Ross.

Oct 28th, 2009, 11:30	#7
sal960x New Member Last Online: Dec 23rd, 2009 11:23 Join Date: Oct 2009 Location: nantwich	I have taken it to the garage and they said it needs a new head unit (is that the same thing?)

Oct 29th, 2009, 12:35	#8
RoscoMac Scottish Section Chair Last Online: Jun 21st, 2024 00:08 Join Date: Dec 2002 Location: Ayrshire View Photos By: RoscoMac	Might be worth clarifying which part they are replacing, as I don't imagine that a faulty "head" unit would cause park sensors & lights to stop working. R.

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