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Old 22-05-2019   #1
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number plate light issues - replacement part?

just had some fun and games on the MOT.
I had a fail as the number plate light wasn't working, I knew that as my car had been warning me of this - as an aside, it amuses me that my 500 will tell me if that's not working, will tell me if the daytime running lights are not working but won't say a single thing if the headlights are out, but that's another matter.

the garage replaced the light and duly passed the MOT.
however, I still have the warning and the light isn't functioning.
the garage tell me that it's a known issue with 500s and the whole piece at the rear needs replacing, it governs the boot light too. they can't supply it but if I get one they will fit it at no cost, which makes me feel they are being honest.
can anyone point me at the correct part online they are referring to? - does this tally with past experience?
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Old 22-05-2019   #2
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Re: number plate light issues - replacement part?

Nonsense, I suspect what they've done is installed an LED bulb which has a lower resistance than a standard halogen bulb. The resistance is what the body computer uses to determine whether or not a bulb is out. If you install an halogen bulb it'll get rid of the warning, alternatively you can wire in a resistor.
Or, easier still, just ignore the warning
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Old 22-05-2019   #3
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Re: number plate light issues - replacement part?

If only one is Out it's probably the board in the trim, remove it and dismantle it as its a common supply and earth also the boot release button is connected oursdidnt work but did after tami apart
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Old 22-05-2019   #4
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Re: number plate light issues - replacement part?

Quote Originally Posted by Eklipze3k View Post
Nonsense, I suspect what they've done is installed an LED bulb which has a lower resistance than a standard halogen bulb. The resistance is what the body computer uses to determine whether or not a bulb is out. If you install an halogen bulb it'll get rid of the warning, alternatively you can wire in a resistor.
Or, easier still, just ignore the warning
it does look like there's no light issuing forth from the bulb - and its a sure fail for next years mot?
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Old 22-05-2019   #5
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Re: number plate light issues - replacement part?

Tailgate wiring loom all ok is it?
Paul m.
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Old 23-05-2019   #6
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Re: number plate light issues - replacement part?

Quote Originally Posted by Texas149 View Post
Tailgate wiring loom all ok is it?
Paul m.

I'd say tailgate loom as well.
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Old 23-05-2019   #7
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Re: number plate light issues - replacement part?

Quote Originally Posted by dsbdsb View Post
it does look like there's no light issuing forth from the bulb - and its a sure fail for next years mot?
Sorry, I missed the part where you said it wasn't functioning - I focussed on the "Replaced the bulb and it passed" bit
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