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Humvee Flasher

jim1131

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My humvee was missing all the lights so I installed all new LED lights but my turn signals only worked on the right side. I swapped the original flasher with a new flasher from midwest military equipment and now non of the turn signals work. The replacement flasher was new in the box and isnt likely to be defective but im not getting any turn signals, what else might be the problem?
 

TOBASH

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Welcome.

Flasher relays are not all the same. Some work with LED , some don’t, and some need help.

Which relay do you have? Did you remove the light in the signal selector arm? Did you search old posts for the very detailed answers?
 

Mullaney

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My humvee was missing all the lights so I installed all new LED lights but my turn signals only worked on the right side. I swapped the original flasher with a new flasher from midwest military equipment and now non of the turn signals work. The replacement flasher was new in the box and isnt likely to be defective but im not getting any turn signals, what else might be the problem?
.
Like @TOBASH mentioned, there are lots of threads about flashers. There is a difference between LED and Incandescent flashers too. Grounds need to be chased in the wiring and that little ground bar on the back of the tail lights is important too.
 

Mogman

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If they worked on one side then why did you replace the flasher? one side or the other if the flasher works it works, pretty simple device.
The LED lights have an independent ground wire and do not depend on the bar across the bolts, at least all I have seen are that way.
to see if the rear lights are working try the brakes, make sure the turn signal switch in in the neutral position and remove the lens to make sure the correct "filaments" are being "lit"
once you make sure all the lights are working (running and brake) then worry about the turn signals.
You can install resistors from the brake/turn signal leads to ground and make any good flasher work but that is somewhat defeating the beauty of the LED lights.
 

TOBASH

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Post number 6 from RWH retiredWarHorses Steve… search function found this with less than 30 seconds invested.


And the simple fix is to replace the flasher LED lights with conventional incandescent 24 volt lights.
 
Last edited:

luke2pl

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Georgia
Welcome.

Flasher relays are not all the same. Some work with LED , some don’t, and some need help.

Which relay do you have? Did you remove the light in the signal selector arm? Did you search old posts for the very detailed answers?


3 of my are led one is regular bulb. All my original lights were regular lights none led. I did not remove the light from signal selector. I did not search previous posts.
 
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