Help...bizzarre light question

[petop]

So i am walking up my drive tonight and notice my rear LED brake bar has 3 LED's "on"!

Picture hopefully explains....
https://ibb.co/2q2CXnJ


So does anyone know what it means. Is it some secret Aston code showing something is wrong. What i did notice a few days ago my passenger window not dropping when opening which seems to have cleared itself when i did a window reset. But i know its only 3 LED's but could they be draining my battery causing the window drop failure?

Help or ideas would be appreciated.

[dwell]

I had exactly this on my V8V four years ago. Bizarre and light unit replaced by Works under warranty. Suggested reason was ingress of moisture.... regards, Dave

[Dewi 2]

My car has always done exactly the same (also an early 4.7).
Obviously only aware of it when there is complete darkness, because the intensity is very low.
Your photo appears to indicate, that they are the right hand three diodes which are faintly on, same as mine.

I don't worry after 8 years of ownership, and it has never caused any problems.
With a dry day car, I am not sure about the water ingress theory, but really I have no idea what the cause is.

[petop]

Thanks for the replies. Yes it stumped me and did the usual Google search which came up with nothing.

For now ill leave it as to be fair you have to know to notice its there. I got my OBD checker out last night and no fault codes showing.

Edited by petop on Wednesday 2nd January 01:39

[Cold]

New ones aren't fantastically expensive (although not exactly VFM at around £120) and AstonMartinBits has used ones for around £50-£60.

[petop]

Yep saw that on Aston Bits.....im looking at new battery at moment anyway so once i get that fitted ill see if that gets rid of the lights.

[Dewi 2]

petop said:

.....I'm looking at new battery at moment anyway so once i get that fitted ill see if that gets rid of the lights.

After nearly 9 years my original battery seemed fine, but I decided that I was pushing my luck, so had a new one fitted.
The quirk of the high brake light was unchanged. Maybe nothing to worry about. No one else knows, and it is not causing any other trouble.
The three lit diodes are so dim, the electrical current being used is presumably almost nothing.

I only notice the lights when closing a garage door during darkness, but perhaps the three dim diodes are on continually, including when driving. Even if they are, during daylight they would not be visible.
However, I wonder if those three do become bright, when the brakes are applied? Nothing has been said at MoT time.

Edited by Dewi 2 on Wednesday 2nd January 12:14

[petop]

Dewi 2 said:

After nearly 9 years my original battery seemed fine, but I decided that I was pushing my luck, so had a new one fitted.
The quirk of the high brake light was unchanged. Maybe nothing to worry about. No one else knows, and it is not causing any other trouble.
The three lit diodes are so dim, the electrical current being used is presumably almost nothing.

I only notice the lights when closing a garage door during darkness, but perhaps the three dim diodes are on continually, including when driving. Even if they are, during daylight they would not be visible.
However, I wonder if those three do become bright, when the brakes are applied? Nothing has been said at MoT time.

Edited by Dewi 2 on Wednesday 2nd January 12:14

Ive looked this morning to see if they are noticeable and they dont see to be but then once you know they are there, you cant help it.
If the car is laid up, i plug in a CTEK charger anyway so l will leave it for now. My battery has not been changed since new (2009) and with the door drop gremlin i thought like you I'll be better changing than chancing my luck.