Boot lid open warning

[turbo1397]

hi folks. Constantly getting the above message even when the boot lid is firmly closed. I thought it would be a boot switch of such but cant seem to locate one.. any one any ideas?

[turbo1397]

anyone?

[Snoodini]

You didn't say if it's a V50 or an S40 but as it's a common problem on the S40 i'm going to assume it's an S40.

It's 99.9% chance that the wiring loom for the boot lid is breaking. You can either locate the break (inside the rubber conduit where the boot opens) and fix it or as most people do, just replace it. It's a pretty simple task to do and the part isn't so expensive.

I wrote a guide for replacement here: Click here

The reason you couldn't find the boot switch is that is is integrated inside the lock catch mechanism, so the signal for detecting an open boot goes through this break-prone wiring loom.

[volvo for ever]

broken wire in loom on nsr of boot bet its a s40 very common either repair or renew loom to cure

[turbo1397]

Sorry folks. Yip, its an S40.. Thanks for info.. i'll check the loom..

[volvo for ever]

its on nsr remove 2 torx screws then cover then pull out grommet

[JC Sport]

Hi

I am new to the forum and wondered if anyone could help!

I read with interest the previous excellent article about the boot lock problems and wonder if the same remedy would apply to my own problem.

Basically I am getting the message the the "boot lid is open" even when it's firmly shut.
I CAN actually then open the boot the normal way by pressing the button above the number plate.
The problem is then closing the boot which is possible.....eventually by closing the lid and pressing the button at the same time.
I've had the boot lock off and applied WD40 with no change to anything.
So, would you say it is a wiring loom problem? OR could it be the module on the boot lock, or even the boot release switch?!

Any help would be appreciated

Kind Regards

Jim

[Snoodini]

Originally Posted by JC Sport

Hi

I am new to the forum and wondered if anyone could help!

I read with interest the previous excellent article about the boot lock problems and wonder if the same remedy would apply to my own problem.

Basically I am getting the message the the "boot lid is open" even when it's firmly shut.
I CAN actually then open the boot the normal way by pressing the button above the number plate.
The problem is then closing the boot which is possible.....eventually by closing the lid and pressing the button at the same time.
I've had the boot lock off and applied WD40 with no change to anything.
So, would you say it is a wiring loom problem? OR could it be the module on the boot lock, or even the boot release switch?!

Any help would be appreciated

Kind Regards

Jim

Based on your description it sounds more likely to be the lock mechanism itself. The wiring should not effect the ability of the lock to close at all, it should latch closed even if its unplugged.

I had a problem with mine exactly like you describe although there was no way I could get it to latch at all.

Test the latch with the boot open and use a screwdriver shaft (or similar) to operate the lock in the same way the lock loop in the body does. you should be able to close the lock in two steps, the second step is the fully locked position. if it does not hold then the lock is probably at fault. if it does hold, try to pull it open again... it should hold strong and only release when you press the boot open switch.

if the lock fails to hold, disconnect the wiring loom and try again (you can do it quickly by disconnecting the entire loom at the end under the parcel shelf). if it still does not hold then it's definitely the lock at fault. if it does now hold and it didn't before then it would indicate a fault in the wiring or the switch.

you can test the switch with a multimeter to isolate the problem. if the switch is functional then it will almost certainly be the wiring.

chances are it's the wiring though as you describe that you are getting the boot open message. it's rather unlikely that the latch would fail to hold AND the position sensor switch in the lock fails (these are two different elements of the lock unit)

[volvo for ever]

sorry i disagree itl be wiring only s40's have wiring issues v50 usually latch and when latch goes down then you cant open it.

easilly checked remove wiring on nsr one or 2 wires will be broken repair or renew

regards

[Snoodini]

My apologies regarding my previous post, I most certainly contradicted myself in my opinion on my first and last paragraphs.

I wrote the first paragraph before I had fully comprehended your problem (didnt read properly) then forgot to review what I had written. Just to confirm, Its most likely the wiring.