Rear light wiring problem

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MOTHPRINCE78
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Rear light wiring problem

Postby MOTHPRINCE78 » Tue Feb 06, 2018 1:28 pm

Hello,

I was wondering if anyone could help me, I have a mk3 laser. Realised my rear tail light stopped working, so I assumed it was a bulb that had blown, after replacing the bulb. Still not working. Check the fuses they are fine, so I’m assuming it is a wiring problem, maybe some corrosion on the wire somewhere...

Is this easy to fix?

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Peter-S
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Re: Rear light wiring problem

Postby Peter-S » Tue Feb 06, 2018 2:12 pm

MOTHPRINCE78 wrote:Hello,

I was wondering if anyone could help me, I have a mk3 laser. Realised my rear tail light stopped working, so I assumed it was a bulb that had blown, after replacing the bulb. Still not working. Check the fuses they are fine, so I’m assuming it is a wiring problem, maybe some corrosion on the wire somewhere...

Is this easy to fix?


Make sure the replacement bulb is good, just in case. Try it in the working side.
It might just be corrosion on the contacts so trying cleaning them gently with a little wire wool. Sometimes the rear sprung contact just needs pulling forwards gently to make a firmer contact.
If this basic stuff doesn't help you need to establish if you have power at the light unit when the switch is on. Do you have any sort of test meter?
ImageImageImage

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D366Y
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Re: Rear light wiring problem

Postby D366Y » Tue Feb 06, 2018 3:58 pm

I recently had the same problem and was the fuse box; I cleaned up all the contacts on the fuse box itself and was the wire coming off of fuse 1 that was the issue...

As Peter said if you have a multimeter it's very helpful in testing what points are working and aren't to help narrow it down

MOTHPRINCE78
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Re: Rear light wiring problem

Postby MOTHPRINCE78 » Tue Feb 06, 2018 8:22 pm

Thanks guys! I’ll give the above a go :)

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Re: Rear light wiring problem

Postby Bug » Wed Feb 07, 2018 8:43 pm

Corroded contacts in the light unit?

Cracked unit due to the two mounting screws being done up too tight? Lights earth through those screws so can cause loads of issues.


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