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One Headlight isn't working - Driver Side Fuse Keeps blowing

kevboost7

By kevboost7,
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kevboost7 Community Regular

kevboost7

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Hey guys, need help figuring out why my driver side (RH) fuse 15amp keeps blowing. The Driver Sides Headlamp is out, i replaced these a long time ago with LED ones that were working for 1-2 years. Now, the driver side light is out and i traced it back to a broken fuse. I replaced the 15 amp fuse in the engine bay and as soon as i flip the headlight on, it blows the new fuse. Any idea what's going on?

GTSBoy Grand Master

GTSBoy

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39 minutes ago, kevboost7 said:

as soon as i flip the headlight on, it blows the new fuse. Any idea what's going on?

That's a short. Find the short. It will be somewhere between that fuse and the headlight. Start by removing the plugs from the back of the headlight and dimmer switches, and measure resistance to earth. Supply side (power from the fuse) should have none. The other side should have resistance compatible with whatever globe(s) is there (which is relatively easy to say for a normal globe, perhaps not as easy to say for LEDs). Anyway, if you have very low resistance, you defo have a short. Then you just have to run the wiring like you're running the bowel of a dog (on the operating table) that has swallowed something it wasn't supposed to.

Duncan Grand Master

Duncan

Posted
Posted

Just note that when trying to find a short in a globe power supply, it is best to disconnect the globe as it will allow current through to earth. With it unplugged it is easier not to get confused.

Also with the r32 wiring, the high beam has 2 power supplies (one when you push the switch forward and the other when you temporarily pull it back; so if it is the high beam blowing you will need to trace both circuits

kevboost7 Community Regular

kevboost7

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Man, you guys are like an all knowing encyclopedia.. how do you guys know how to fix everything??

but thanks. i will try to trace this wiring today. What is this globe thing you are referring too? Globe Power Supply? Are you referring to the light bulb?

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