Technical Fiat Idea right tail-light is very dim/weak

[BrightIdea]

Hi !
Like a few people here, i joined this forum because of a problem and here it is.
The righ tail light (brake lights+ turn signal) of my mom's Fiat Idea are very VERY dim. When braking or using the turn signal, the lights are weak and only seem to come up after a short delay.
The car does report that both are faulty.
This car was left outdoors and was basically not driven for the last 9 months, but was "put back into service" this month and we recharged the battery. Said batterly is a bit old.

Have anyone seen this problem before ?
Is it one of the Idea's known electrical problems, are the bulbs just starting to die at the same time or is it something else entirely ?

 

[porta]

Clean all the contacts, the earths, on the plug, socket and bulb holders

 

[BrightIdea]

Clean all the contacts, the earths, on the plug, socket and bulb holders

Thanks for the suggestion, i'll try that !
Do you know where i can find ressources on how to remove the tail-light btw ?
I tried searching online, but either i'm not entering the correct keywords or there aren't any

 

[varesecrazy]

Thanks for the suggestion, i'll try that !
Do you know where i can find ressources on how to remove the tail-light btw ?
I tried searching online, but either i'm not entering the correct keywords or there aren't any

Post a photo..
I cannot remember ( I wrote an IDEA GUIDE on here years ago)

Often just 2 x big cross Philips head screws, then firmly lift away from bodywork


There Is probably an owners manual on here too

 

[tigershoot]

I think there are two nuts per light housing. You remove both and then wiggle the whole assembly out. It may seem really stuck in but the housing will come off.