Interior lights not working

jwindwood · Aug 9th, 2021, 15:58

Guys

After fixing my sunroof by removing the motor and pulling it manually, I replaced the front interior light unit. All replaced as removed.
However, now I have no door activated courtesy lights, either front or rear seats. Front map lights work fine as do footwell lights and load area light.
Tried a UEM reset just in case and checked/rechecked connections but nothing.

Any ideas?

Thanks

stuart bowes · Aug 9th, 2021, 18:05

I wonder if it's one of those things that can be cleared by disconnecting battery for an hour or so

Just an idea, you never know.. costs nothing to try! Key in position 2 when reconnecting

Aveton Gifford · Aug 9th, 2021, 22:15

Try getting in the car, wait until the footwell lights go out. Then press the centre light switch until all the lights come back on. When they all go out again, try opening the door and all the lights should go back to normal.

For some reason, on these cars if you press and hold the main light button for more than 5 seconds it cancels the roof lights coming on when you open the doors, and just the footwell lights come on instead.

It's possible you may have pressed the button whilst replacing the unit.

Worth a try!

stuart bowes · Aug 10th, 2021, 09:49

interesting.. useful to know thanks

cheshired5 · Aug 10th, 2021, 12:41

Quote:

Originally Posted by jwindwood

I replaced the front interior light unit.

Pretty sure that unit contains the UEM so like replacing many of the modules, a reload of new software may be required.
Try refitting the original if you still have it.

XC70Bob · Aug 10th, 2021, 12:57

Quote:

Originally Posted by cheshired5

Pretty sure that unit contains the UEM so like replacing many of the modules, a reload of new software may be required.
Try refitting the original if you still have it.

I think you will find it is the original light unit, it was removed to repair/close a faulty sunroof.

So for replaced read re-fitted.

jwindwood · Aug 10th, 2021, 17:45

Solved!

Went out shopping in the car. Lights still not working. Locked the car. When I came back, the car wouldn't unlock with the remote. Opened it with the key and everything is back to normal!
Who knows why...........

Aug 9th, 2021, 15:58	#1
jwindwood Junior Member Last Online: May 4th, 2022 17:35 Join Date: Aug 2018 Location: Walsall	Interior lights not working Guys After fixing my sunroof by removing the motor and pulling it manually, I replaced the front interior light unit. All replaced as removed. However, now I have no door activated courtesy lights, either front or rear seats. Front map lights work fine as do footwell lights and load area light. Tried a UEM reset just in case and checked/rechecked connections but nothing. Any ideas? Thanks __________________ Kind regards John 2002 V70 XC AWD 2.4T

Aug 9th, 2021, 18:05	#2
stuart bowes trying to be helpful Last Online: Today 22:08 Join Date: Aug 2020 Location: Dagenham	I wonder if it's one of those things that can be cleared by disconnecting battery for an hour or so Just an idea, you never know.. costs nothing to try! Key in position 2 when reconnecting __________________ V70 '01 auto petrol 2.4 (140) 72k ------------------------- mini project - link

Aug 9th, 2021, 22:15	#3
Aveton Gifford VOC Member Last Online: Jun 17th, 2024 20:39 Join Date: Mar 2012 Location: Back on top, for now!!	Try getting in the car, wait until the footwell lights go out. Then press the centre light switch until all the lights come back on. When they all go out again, try opening the door and all the lights should go back to normal. For some reason, on these cars if you press and hold the main light button for more than 5 seconds it cancels the roof lights coming on when you open the doors, and just the footwell lights come on instead. It's possible you may have pressed the button whilst replacing the unit. Worth a try! __________________ 2004 MY S60 2.0T SE WITH A STANDARD AUTO BOX 2005 MY C70 2.0T MANUAL 2007 MY XC70 D5 AUTO

Aug 10th, 2021, 09:49	#4
stuart bowes trying to be helpful Last Online: Today 22:08 Join Date: Aug 2020 Location: Dagenham	interesting.. useful to know thanks __________________ V70 '01 auto petrol 2.4 (140) 72k ------------------------- mini project - link

Aug 10th, 2021, 17:45	#7
jwindwood Junior Member Last Online: May 4th, 2022 17:35 Join Date: Aug 2018 Location: Walsall	Solved! Went out shopping in the car. Lights still not working. Locked the car. When I came back, the car wouldn't unlock with the remote. Opened it with the key and everything is back to normal! Who knows why........... __________________ Kind regards John 2002 V70 XC AWD 2.4T

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