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Dash, tail, side & reg plate lights not working


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I changed my reg plates bulbs to LED's and they worked fine.. Seen that they weren't working the next day and found they blew fuse 73 7.5amp, brought a new fuse it blew it again immediately. Heard that "they draw more current sometimes" so I thought I would try a 10 amp fuse put it in and they didn't work but didn't blow the fuse either, put another 7.5amp fuse and now and I have noticed I have no side lights, instrument lights or tail lights working at all! Doesn't chime when left on and open door and the green lights-on dash symbol doesn't light up! Weird thing is the side lights and tail lights work when in parking light mode 🤔 checked all fuses and they fine.. any ideas greatly appreciated!!

2006 pfl

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The problem you have sounds like you have used standard led lights, if you have rear headliner lights then your car will only allow for can bus led lights.

The fuse blowing is the gem module itself popping it to prevent damage. 

Installing a 10 fuse into the gem would mean you have potentially damaged the gem internally. 

Install can bus leds and then see if it resolves the issue, but by the sounds of it the gem internal pathways may have burnt out. 


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Thanks for the reply!

Also the full beams and xenons headlights work fine, all fogs, indicators and reverse light fine too, just this circuit of lights seems to be bust.

I tried a normal bulb in the reg plate lights and it don't work it has 7.5amp fuse back in so no power getting to them nor the side lights and tail lights unless in parking light mode then the side lights and tail lights work fine!

 I've found some other similar posts online saying its the 'light switch control unit' could the 10 amp fuse have allowed something to break in the switch? 

sorry for being stupid what's the gem? The fuse box under the glove box?


thanks again for the reply

really appreciated !


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  • 2 years later...
On 8/23/2017 at 10:29 PM, Domlh91 said:

Problem solved thanks to Dan62!


fuse 49 was popped! 

Hi what type of car was it and what was fuse 49. I have exactly the same problem on a 57 plate Ford Focus 1.8 ts I.  But it Dosnt have a fuse 49. Any ideas


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  • 3 weeks later...

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