Number Plate Lights

[Odd Job]

Hi all,

I know this has come up before, I've tried to find the thread but I cant, so I apologise.
Basically, my near side number plate light has decided to pack up.
It's not the bulb.
The bulb holder is in nice condition, but no power coming to it.
I know there's yet another ECU type thingy that can be the culprit.
How do I go about finding / testing and sorting the problem out please?

Many thanks in advance.

Richard

[suzublu]

PCB under the chrome plinth probably failed, you can repair, replace or bypass it. There's a how to for it


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[Mike Noc]

Yep that or the cable in the rubber corrugated pipe between the body and boot lid has broken.

I've had both happen.

Easy way to check is to remove the boot lid trim panel and check the voltage at the cable terminals on the PCB.

[Odd Job]

Originally Posted by Mike Noc

Yep that or the cable in the rubber corrugated pipe between the body and boot lid has broken.

I've had both happen.

Easy way to check is to remove the boot lid trim panel and check the voltage at the cable terminals on the PCB.

Would that put both number plate lamps out if it was a broken wire?

[Mike Noc]

Yep - both bulbs are wired in parallel on a PCB which is supplied with 12 volts and a return wire.

If you find voltage at the cable plugs then the PCB is at fault, and if you don't then the fault is on the supply side; commonly the cable where it flexes, or a bad earth connection to the car body.
















.

[COLVERT]

I wonder why a PCB ???---It's just a12 volt supply to two 12 volt bulbs.---

[clf]

Problem sorted.

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[Odd Job]

I like it

[marinabrian]

Originally Posted by clf

Problem sorted.

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La la la, I've gone one better Alan





Then again, I could have spent a couple of leisurely hours frabbling about.......

So I drilled a 1mm hole through the centre of each aluminium rivet that "secure" the festoon lampholder, then tinned the holder, and soldered a length of tinned copper wire to each lampholder clip.

I then bent it over against the PCB and soldered the other side to the track land.

Finally I washed any traces of flux and gunge off the PCB, the lamp holders, then carefully peeled the gaskets from the lamp lenses, and scrubbed them clean with an old toothbrush and some Cillit Bang (Barry Scott told me this on detailing world)

I then reassembled the lamp holder to the lip spoiler, reapplied coppaslip to the threads, and after a quick wipe over with an oily rag and a Brillo Pad to the Primertallic finish, I refitted the spoiler.

The finishing touch was a pair of nice Lucas 5W incandescent festoon filament lamps, none of this LED rubbish, real bulbs to prevent annoyance to other road users behind from the glare of hard white brilliant light scatter.

Job done, well for today at least



Brian

[clf]

Originally Posted by marinabrian

La la la, I've gone one better Alan





Then again, I could have spent a couple of leisurely hours frabbling about.......

So I drilled a 1mm hole through the centre of each aluminium rivet that "secure" the festoon lampholder, then tinned the holder, and soldered a length of tinned copper wire to each lampholder clip.

I then bent it over against the PCB and soldered the other side to the track land.

Finally I washed any traces of flux and gunge off the PCB, the lamp holders, then carefully peeled the gaskets from the lamp lenses, and scrubbed them clean with an old toothbrush and some Cillit Bang (Barry Scott told me this on detailing world)

I then reassembled the lamp holder to the lip spoiler, reapplied coppaslip to the threads, and after a quick wipe over with an oily rag and a Brillo Pad to the Primertallic finish, I refitted the spoiler.

The finishing touch was a pair of nice Lucas 5W incandescent festoon filament lamps, none of this LED rubbish, real bulbs to prevent annoyance to other road users behind from the glare of hard white brilliant light scatter.

Job done, well for today at least



Brian

PAH! the first speed bump you would go over you would knock that lamp off the shelf! I had quality body coloured duct tape, wouldnt take much to blend it in.