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Ive got a really weird one. A few weeks ago i noticed that my rear offside parking light had stopped working. Thinking it was a blown bulb i replaced it but its still not working. Power is obviously getting to it as the brake light works and these works on a dual filament. I have also noticed that my front nearside main light also doesnt work. I replaced this and again its still not working. I checked the fuses and they are all intact. Any one have any ideas?
 

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Unless your model is different from the norm......dual-filament bulbs have different power inputs, and share a single ground. (three connections total). So it's quite possible the brake light filament is getting power, but the running light is not.

It's also possible you have a bad ground connection at the bulb. The brake light might still work, getting it's ground back through the running light power wire (hard to explain).

Your other light problems may be a different issue....
 
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