foot well lights won't come up

volvolv · May 1st, 2021, 20:25

Hi guys,

For Volvo s80 2004 d5

Today I realized that footwell lights won't come up. Weeks ago back door lights went dark as well, to which I didn't pay much attention.

I've checked the courtesy light fuse (changed actually) also changed bulbs to new ones but nothing from the mentioned locations works.

What could be the issue?

volvolv · May 3rd, 2021, 23:01

any ideas?

Ripmax · May 5th, 2021, 11:15

Quote:

Originally Posted by volvolv

any ideas?

Not sure if this is me just imagining stuff. But on my S60, I noticed the interior lights wouldn't be triggered by the door if it was light outside, and the dash wouldn't light up etc...

Then, near the end of my ownership with it I observed that they would come on regardless of the outside light, and VIDA was giving me a DTC for the twilight sensor.

I wonder if possibly your sensor has gone bad?

volvolv · May 10th, 2021, 10:03

Quote:

Originally Posted by Ripmax

Not sure if this is me just imagining stuff. But on my S60, I noticed the interior lights wouldn't be triggered by the door if it was light outside, and the dash wouldn't light up etc...

Then, near the end of my ownership with it I observed that they would come on regardless of the outside light, and VIDA was giving me a DTC for the twilight sensor.

I wonder if possibly your sensor has gone bad?

So best is to connect vida and do the test?

cheshired5 · May 10th, 2021, 13:06

Quote:

Originally Posted by volvolv

So best is to connect vida and do the test?

If you have Vida, it's always best to use that.

volvolv · May 22nd, 2021, 09:52

Quote:

Originally Posted by cheshired5

If you have Vida, it's always best to use that.

Hi there,

I have scanned with VIDA, but couldn't find any faults that would show about lights.

Is there a specific section for this?

Ripmax · May 23rd, 2021, 19:24

In VIDA, select the (either CEM or UEM). Looking at a VIDA screenshot of my S60 it was the CEM. and look for DTCs related to a twilight sensor.

I was getting "CEM-9F20 Twilight sensor Faulty signal" and "CEM-5A00 Sun sensor Signal too high"

Alternatively, go to the Delivery tab and it will show all DTCS from all modules for that read.

May 1st, 2021, 20:25	#1
volvolv Senior Member Last Online: Jul 14th, 2021 20:07 Join Date: Aug 2015 Location: Glasgow	foot well lights won't come up Hi guys, For Volvo s80 2004 d5 Today I realized that footwell lights won't come up. Weeks ago back door lights went dark as well, to which I didn't pay much attention. I've checked the courtesy light fuse (changed actually) also changed bulbs to new ones but nothing from the mentioned locations works. What could be the issue?

May 23rd, 2021, 19:24	#7
Ripmax Member Last Online: Aug 7th, 2023 16:27 Join Date: Mar 2018 Location: Leicestershire (with VIDA pm me)	In VIDA, select the (either CEM or UEM). Looking at a VIDA screenshot of my S60 it was the CEM. and look for DTCs related to a twilight sensor. I was getting "CEM-9F20 Twilight sensor Faulty signal" and "CEM-5A00 Sun sensor Signal too high" Alternatively, go to the Delivery tab and it will show all DTCS from all modules for that read. __________________ Current - 2004 Volvo V70R Titanium Grey - 67k 2008 S60 2.0t Sport Electric Silver - 156k 2000 V70 Classic 2.4M Signal Red - 240k 2001 Audi A6 C5 Sport Avant 1.9 TDi - 173k Last edited by Ripmax; May 23rd, 2021 at 21:39.

May 3rd, 2021, 23:01	#2
volvolv Senior Member Last Online: Jul 14th, 2021 20:07 Join Date: Aug 2015 Location: Glasgow	any ideas?

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