S40 (New) Electrics : - Interior boot light

Jez Parker · Jan 30th, 2017, 22:00

Hi Gents,

I have an issue with my boot interior light not working. I have checked the earth at the light plug and its ok. I then checked for voltage at the same point and its 0. The fuse, F86 i believe, also provides power to the rear reading lights. These work so I have discounted the fuse to be at fault. Are there any other common areas on the S40 were the connection may be breaking down? Hoping someone can point me in the right direction before I start pulling things apart.

Thanks

Jez

Snoodini · Jan 31st, 2017, 06:48

It's possible that the boot wiring loom is failing. Although the light isn't connected to this wiring loom, the signal that allows the car to know if the boot is open or not comes from here. Check the condition of the wires just up inside the rubber conduit to the boot lid. I have written a guide for replacing/repairing the wiring loom here, This should give you some tips on what steps to take for inspection.

Jez Parker · Jan 31st, 2017, 19:08

Snoodini, thanks for the advise. From what I can see the boot light has a constant voltage feed from the fuse. It then waits for an earth that is provided by the book catch when the boot is opened. I have checked the earth through the boot catch and that is good therefore the loom you mentioned is also good. The issue I have is that I'm not being provided with a voltage. I think I'm going to start tracing the loom as far as I can to find any other possible points of breaking.

Thanks again

Bungo · Feb 1st, 2017, 13:49

Have you tried connecting a separate earth to test it?
I've a feeling it may be the boot switch.

glegalee · Nov 1st, 2020, 18:50

Did you ever get this fixed? I have the same problem with the light in my S40 SE's boot :/

Cheers G.

Jan 30th, 2017, 22:00	#1
Jez Parker New Member Last Online: Mar 6th, 2017 22:30 Join Date: Jul 2016 Location: Beverley	Interior boot light Hi Gents, I have an issue with my boot interior light not working. I have checked the earth at the light plug and its ok. I then checked for voltage at the same point and its 0. The fuse, F86 i believe, also provides power to the rear reading lights. These work so I have discounted the fuse to be at fault. Are there any other common areas on the S40 were the connection may be breaking down? Hoping someone can point me in the right direction before I start pulling things apart. Thanks Jez

Feb 1st, 2017, 13:49	#4
Bungo Premier Member Last Online: Oct 29th, 2020 23:25 Join Date: Sep 2015 Location: Midlands	Have you tried connecting a separate earth to test it? I've a feeling it may be the boot switch. __________________ 2008 S40 2.0d R design auto powershift

Jan 31st, 2017, 06:48	#2
Snoodini Member Last Online: Jul 20th, 2021 08:47 Join Date: Nov 2013 Location: Gothenburg	It's possible that the boot wiring loom is failing. Although the light isn't connected to this wiring loom, the signal that allows the car to know if the boot is open or not comes from here. Check the condition of the wires just up inside the rubber conduit to the boot lid. I have written a guide for replacing/repairing the wiring loom here, This should give you some tips on what steps to take for inspection.

Jan 31st, 2017, 19:08	#3
Jez Parker New Member Last Online: Mar 6th, 2017 22:30 Join Date: Jul 2016 Location: Beverley	Snoodini, thanks for the advise. From what I can see the boot light has a constant voltage feed from the fuse. It then waits for an earth that is provided by the book catch when the boot is opened. I have checked the earth through the boot catch and that is good therefore the loom you mentioned is also good. The issue I have is that I'm not being provided with a voltage. I think I'm going to start tracing the loom as far as I can to find any other possible points of breaking. Thanks again

Nov 1st, 2020, 18:50	#5
glegalee Junior Member Last Online: Mar 8th, 2024 23:08 Join Date: Aug 2014 Location: Bridgwater	Did you ever get this fixed? I have the same problem with the light in my S40 SE's boot :/ Cheers G.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)