LED 3157 bulbs melting

Forum for the Xterra, Frontier and Hardbody, the smaller workhorses of the Nissan lineup!
nissan2gr8
Posts: 3
Joined: Thu Mar 19, 2015 10:12 am
Car: 2003 Nissan Frontier XE V6-3.3L

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I've been trying to replace my incandescent 3157 brake light bulbs with LEDs in my 2003 frontier xe v6-3.3L they work fine until I turn on the headlights AND press the brake pedal. Normally the headlight switch illuminates the brake lights too and when braking the light becomes brighter. Do I need to get a variable / dual brightness LED bulb if those even exist? And resisters don't help at all.


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NolimitZ32
Posts: 7042
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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Hmm, this is a new one for me. LEDs pull much less power so they should not care what the circuit provides and since your incandescent bulbs are dual filament, one for tail and one for brake the circuits for the two should not intertwine unless you bought defective LEDs or you may have them installed backwards. Try turning the bulb 180* and see if that works otherwise you may need to look at a more sophisticated LED bulb which has completely separate diodes for the two circuits.

nissan2gr8
Posts: 3
Joined: Thu Mar 19, 2015 10:12 am
Car: 2003 Nissan Frontier XE V6-3.3L

Post

Hmm they were pretty cheap led bulbs and the odds of 2 packages (4 bulbs) doing the same thing due to defect are pretty low. So I'll give the 180 trick a try and check out some better LEDs. This is what I get for being cheap 8 guess haha.


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